IS-IS-TE IPv4
This chapter contains basic IS-IS TE configuration examples.
A TE link represents an IS-IS/OSPF link state advertisement and a link state database of certain physical resources and their properties between two nodes. Typically, a TE link is advertised as an adjunct to a “regular” OSPF or IS-IS link. That is, an adjacency is brought up on the link. When the link is up, both the regular IGP properties of the link (for example, the SPF metric) and the TE properties of the link are then advertised.
Enable MPLS-TE in Level-1 and Level-2 on L1-L2 IS
In the following example, R1 is the L1 router, R2 is the L1/L2 router enabling MPLS-TE for both Level-1 and Level-2 IS, and R3 is the L2 router. The following configuration is given for R1, R2 and R3.
MPLS-TE Topology
Configuration
R2
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.2/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#interface eth2 | Enter Interface eth2 configure mode. |
(config-if)#ip address 15.1.1.2/24 | Configure ip address to the interface eth2. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth2. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-2. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#mpls traffic-eng router-id 2.2.2.2 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0002.00 | Configure the ISIS net address with area id as: 49.0001 and system id as: 0000.0000.0002. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#end | Exit Router mode. |
R1
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.1/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-1 | Configure IS-Type as Level-1 router. |
(config-router)#mpls traffic-eng router-id 1.1.1.1 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#net 49.0001.0000.0000.0001.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0001. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#end | Exit Router mode. |
R3
#configure terminal | Enter Configure mode. |
(config)#interface eth2 | Specify the interface (eth2) to configure, and enter Interface mode. |
(config-if)#ip address 15.1.1.3/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-2 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-2 | Configure IS-Type as Level-1 router. |
(config-router)#mpls traffic-eng router-id 3.3.3.3 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0003.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0003. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#end | Exit Router mode. |
Validation
R2
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0001 eth1 5254.00bb.5e85 Up 24 L1 IS-IS
0000.0000.0003 eth2 5254.00ac.f960 Up 9 L2 IS-IS
#
Check the output of “show isis database level-1 verbose” to verify that LSP does have correct router-id.
R2#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00 0x00000003 0x5D0E 629 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0001.01-00 0x00000002 0x8D3E 629 0/0/0
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00* 0x00000004 0xE080 634 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
Check the output of “show isis database level-2 verbose” to verify that LSP does have correct router-id.
R2#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00* 0x00000005 0xEE2C 622 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.01
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0003.00-00 0x00000003 0x94BA 616 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.01
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.01-00 0x00000002 0x9134 616 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
R1
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth1 5254.00f6.4ae7 Up 7 L1 IS-IS
Check the output of “show isis database level-1 verbose” to verify that LSP does have correct router-id.
R1#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000003 0x5D0E 364 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0001.01-00* 0x00000002 0x8D3E 364 0/0/0
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00 0x00000004 0xE080 368 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
R3
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#sh clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth2 5254.0062.3ea6 Up 21 L2 IS-IS
Check the output of “show isis database level-2 verbose” to verify that LSP does have correct router-id.
R3#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00 0x00000005 0xEE2C 337 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.01
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0003.00-00* 0x00000003 0x94BA 333 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.01
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.01-00* 0x00000002 0x9134 333 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
Maximum Link Bandwidth and Reservable Bandwidth
In the following example, R1 is the L1 router, R2 is the L1/L2 router enabling MPLS-TE for both Level-1 and Level-2 IS, and R3 is the L2 router. The following configuration is given for R1, R2 & R3.
MPLS-TE Topology
R2
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.2/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config-if)#interface eth2 | Enter Interface eth2 configure mode. |
(config-if)#ip address 15.1.1.2/24 | Configure ip address to the interface eth2. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth2. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-2. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#mpls traffic-eng router-id 2.2.2.2 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0002.00 | Configure the ISIS net address with area id as: 49.0001 and system id as: 0000.0000.0002. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth2 | Enter the interface configure mode. |
(config-if)#bandwidth 1g | Configure Maximum link Bandwidth as 1g bits per second. |
(config-if)#reservable-bandwidth 100m | Specify the maximum reservable bandwidth per interface. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
(config)#interface eth1 | Enter the interface configure mode. |
(config-if)#bandwidth 500m | Configure Maximum link Bandwidth as 500m bits per second. |
(config-if)#reservable-bandwidth 200m | Specify the maximum reservable bandwidth per interface. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
R1
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.1/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-1 | Configure IS-Type as Level-1 router. |
(config-router)#mpls traffic-eng router-id 1.1.1.1 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#net 49.0001.0000.0000.0001.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0001. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth1 | Enter the interface configure mode. |
(config-if)#bandwidth 1g | Configure Maximum link Bandwidth as 1g bits per second. |
(config-if)#reservable-bandwidth 100m | Specify the maximum reservable bandwidth per interface. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
R3
#configure terminal | Enter Configure mode. |
(config)#interface eth2 | Specify the interface (eth2) to configure, and enter Interface mode. |
(config-if)#ip address 15.1.1.3/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-2 | Configure IS-Type as Level-2 router. |
(config-router)#mpls traffic-eng router-id 3.3.3.3 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0003.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0003. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth2 | Enter the interface configure mode. |
(config-if)#bandwidth 1g | Configure Maximum link Bandwidth as 1g bits per second. |
(config-if)#reservable-bandwidth 100m | Specify the maximum reservable bandwidth per interface. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
Validation
R2
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Total number of L1 adjacencies: 2
Total number of L2 adjacencies: 1
Total number of adjacencies: 3
Tag 1: VRF : default
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0001 eth1 5254.003d.2123 Up 6 L1 IS-IS
0000.0000.0003 eth2 5254.00fa.54d5 Up 6 L1 IS-IS
Up 6 L2 IS-IS
Check the output of “show isis database level-1 verbose” to verify that LSP does have configured Max Link Bandwidth and Reservable Bandwidth.
R2#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00 0x00000007 0xA4DF 1135 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 10 IP-Extended 1.1.1.1/32
0000.0000.0001.01-00 0x00000004 0x8B3C 683 0/0/0
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00* 0x0000000E 0x3961 1069 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth : 500000.00 kbits/sec
Reservable Bandwidth : 200000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 200000.00 kbits/sec
Unreserved Bandwidth at priority 1: 200000.00 kbits/sec
Unreserved Bandwidth at priority 2: 200000.00 kbits/sec
Unreserved Bandwidth at priority 3: 200000.00 kbits/sec
Unreserved Bandwidth at priority 4: 200000.00 kbits/sec
Unreserved Bandwidth at priority 5: 200000.00 kbits/sec
Unreserved Bandwidth at priority 6: 200000.00 kbits/sec
Unreserved Bandwidth at priority 7: 200000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 2.2.2.0/24
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.00-00 0x0000000A 0x4C9C 437 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.02
Metric: 10 IP-Extended 3.3.3.3/32
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.02-00 0x00000001 0x8C39 437 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
Check the output of “show isis database level-2 verbose” to verify that LSP does have configured Max Link Bandwidth and Reservable Bandwidth.
R2#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00* 0x00000014 0x8C1A 1012 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 20 IP-Extended 1.1.1.1/32
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 20 IP-Extended 3.3.3.3/32
Metric: 10 IP-Extended 2.2.2.0/24
0000.0000.0003.00-00 0x0000000D 0x7B17 1006 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 3.3.3.3/32
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 30 IP-Extended 1.1.1.1/32
Metric: 20 IP-Extended 13.1.1.0/24
Metric: 20 IP-Extended 2.2.2.0/24
0000.0000.0003.02-00 0x00000001 0x8C39 375 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
R1
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Total number of L1 adjacencies: 1
Total number of L2 adjacencies: 0
Total number of adjacencies: 1
Tag 1: VRF : default
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth1 5254.0028.3734 Up 24 L1 IS-IS
Check the output of “show isis database level-1 verbose” to verify that LSP does have configured Max Link Bandwidth and Reservable Bandwidth.
R1#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL PDU Length
0000.0000.0001.00-00* 0x00000006 0xA6DE 331 0/0/0 143
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 10 IP-Extended 1.1.1.1/32
0000.0000.0001.01-00* 0x00000004 0x8B3C 780 0/0/0 51
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00 0x0000000E 0x3961 1164 0/0/0 224
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth : 500000.00 kbits/sec
Reservable Bandwidth : 200000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 200000.00 kbits/sec
Unreserved Bandwidth at priority 1: 200000.00 kbits/sec
Unreserved Bandwidth at priority 2: 200000.00 kbits/sec
Unreserved Bandwidth at priority 3: 200000.00 kbits/sec
Unreserved Bandwidth at priority 4: 200000.00 kbits/sec
Unreserved Bandwidth at priority 5: 200000.00 kbits/sec
Unreserved Bandwidth at priority 6: 200000.00 kbits/sec
Unreserved Bandwidth at priority 7: 200000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 2.2.2.0/24
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.00-00 0x0000000A 0x4C9C 533 0/0/0 80
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.02
Metric: 10 IP-Extended 3.3.3.3/32
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.02-00 0x00000001 0x8C39 533 0/0/0 51
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
R3
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Total number of L1 adjacencies: 1
Total number of L2 adjacencies: 1
Total number of adjacencies: 2
Tag 1: VRF : default
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth2 5254.00d4.2c13 Up 20 L1 IS-IS
Up 20 L2 IS-IS
Check the output of “show isis database level-2 verbose” to verify that LSP does have configured Max Link Bandwidth and Reservable Bandwidth.
R3#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00 0x00000010 0xA4E5 942 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 6.6.6.6
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 6.6.6.6/32
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
Metric: 20 IP-Extended 1.1.1.1/32
Metric: 20 IP-Extended 3.3.3.3/32
0000.0000.0003.00-00* 0x0000000B 0xF286 950 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.02
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth : 1000000.00 kbits/sec
Reservable Bandwidth : 100000.00 kbits/sec
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 100000.00 kbits/sec
Unreserved Bandwidth at priority 1: 100000.00 kbits/sec
Unreserved Bandwidth at priority 2: 100000.00 kbits/sec
Unreserved Bandwidth at priority 3: 100000.00 kbits/sec
Unreserved Bandwidth at priority 4: 100000.00 kbits/sec
Unreserved Bandwidth at priority 5: 100000.00 kbits/sec
Unreserved Bandwidth at priority 6: 100000.00 kbits/sec
Unreserved Bandwidth at priority 7: 100000.00 kbits/sec
TE-Default Metric: 10
Metric: 10 IP-Extended 3.3.3.3/32
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 30 IP-Extended 1.1.1.1/32
Metric: 20 IP-Extended 6.6.6.6/32
Metric: 20 IP-Extended 13.1.1.0/24
0000.0000.0003.02-00* 0x00000001 0x8C39 939 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
Administrative Group Constraints
To configure administrative group constraints (also known as color constraints) in Level-1 and Level-2 on L1-L2 IS:
• Configure support for required admin groups in NSM on all participating routers
• Configure required administrative groups on all participating interfaces
The configuration in this example forces the primary LSP to be setup through links that belong either to admin group A or C. A link that does not belong to either of these admin groups will not be used for setting up the LSP.
MPLS-TE Topology
R2
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.2/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config)#interface eth2 | Enter Interface eth2 configure mode. |
(config-if)#ip address 15.1.1.2/24 | Configure ip address to the interface eth2. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth2. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-2. |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit from interface configuration mode. |
(config)#admin-group a 0 | Add new administrative groups and specify their names and assign bit values to them. |
(config)#admin-group b 1 | |
(config)#admin-group c 2 | |
(config)#admin-group d 3 | |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#mpls traffic-eng router-id 2.2.2.2 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0002.00 | Configure the ISIS net address with area id as: 49.0001 and system id as: 0000.0000.0002. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth1 | Enter the interface configure mode. |
(config-if)#admin-group a | Add administrative groups to the links. When used in the interface mode, this command adds a link between an Interface and a group. The name is the name of the group Previously configured. You can have multiple groups per Interface. |
(config-if)#admin-group c | |
(config-if)#exit | Exit interface configure mode. |
(config)#interface eth2 | Enter the interface configure mode. |
(config-if)#admin-group b | Add administrative groups to the links. When used in the interface mode, this command adds a link between an Interface and a group. The name is the name of the group previously configured. You can have multiple groups per Interface. |
(config-if)#admin-group d | |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#end | Exit interface configure mode. |
R1
#configure terminal | Enter Configure mode. |
(config)#interface eth1 | Specify the interface (eth1) to configure, and enter Interface mode. |
(config-if)#ip address 13.1.1.1/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-1 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
(config)#admin-group a 0 | Add new administrative groups and specify their names and assign bit values to them. |
(config)#admin-group c 2 | |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-1 | Configure IS-Type as Level-1 router. |
(config-router)#mpls traffic-eng router-id 1.1.1.1 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-1 | Enable MPLS-TE in is-type Level-1. |
(config-router)#net 49.0001.0000.0000.0001.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0001. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth1 | Enter the interface configure mode. |
(config-if)#admin-group a | Add administrative groups to the links. When used in the interface mode, this command adds a link between an Interface and a group. The name is the name of the group Previously configured. You can have multiple groups per Interface. |
(config-if)#admin-group c | |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#end | Exit interface configure mode. |
R3
#configure terminal | Enter Configure mode. |
(config)#interface eth2 | Specify the interface (eth2) to configure, and enter Interface mode. |
(config-if)#ip address 15.1.1.3/24 | Configure ip address to the interface eth1. |
(config-if)#ip router isis 1 | Enable ISIS on interface eth1. |
(config-if)#isis circuit-type level-2 | Configure ISIS circuit-type as Level-1 |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#exit | Exit interface configure mode. |
(config)#admin-group b 1 | Add new administrative groups and specify their names and assign bit values to them. |
(config)#admin-group d 3 | |
(config)#router isis 1 | Create an IS-IS routing instance for area 49 (1). |
(config-router)#metric-style wide | Configure the new style of metric type as wide. |
(config-router)#is-type level-2 | Configure IS-Type as Level-2 router. |
(config-router)#mpls traffic-eng router-id 3.3.3.3 | Configure MPLS-TE unique router-id TLV. |
(config-router)#mpls traffic-eng level-2 | Enable MPLS-TE in is-type Level-2. |
(config-router)#net 49.0001.0000.0000.0003.00 | Configure the ISIS net address with area id as: 49.0001 and system-id as: 0000.0000.0003. |
(config-router)#commit | Commit candidate configuration to the running configuration |
(config-router)#exit | Exit Router mode. |
(config)#interface eth2 | Enter the interface configure mode. |
(config-if)#admin-group b | Add administrative groups to the links. When used in the interface mode, this command adds a link between an Interface and a group. The name is the name of the group Previously configured. You can have multiple groups per Interface. |
(config-if)#admin-group d | |
(config-if)#commit | Commit candidate configuration to the running configuration |
(config-if)#end | Exit interface configure mode. |
Validation
R2
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0001 eth1 5254.00bb.5e85 Up 24 L1 IS-IS
0000.0000.0003 eth2 5254.00ac.f960 Up 9 L2 IS-IS
Check the output of “show isis database level-1 verbose” to verify that LSP does have configured admin-group constraints in Level-1.
straints in Level-1.
R2#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00 0x00000004 0x3022 1020 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
Admin-Group:
Group 0
Group 2
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0001.01-00 0x00000001 0x8F3D 820 0/0/0
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00* 0x00000004 0xBB8D 1070 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
Admin-Group:
Group 0
Group 2
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
Check the output of “show isis database level-2 verbose” to verify that LSP does have configured admin-group constraints in Level-2.
R2#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00* 0x00000005 0x1FDE 1058 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.01
Admin-Group:
Group 1
Group 3
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0003.00-00 0x00000004 0x71BF 1081 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.01
Admin-Group:
Group 1
Group 3
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.01-00 0x00000001 0x9333 827 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00
R1
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth1 5254.00f6.4ae7 Up 7 L1 IS-IS
Check the output of “show isis database level-1 verbose” to verify that LSP does have configured admin-group constraints in Level-1.
R1#show isis database level-1 verbose
Tag 1: VRF : default
IS-IS Level-1 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0001.00-00* 0x00000004 0x3022 1105 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.1
Router ID: 1.1.1.1
Metric: 10 IS-Extended 0000.0000.0001.01
Admin-Group:
Group 0
Group 2
IPv4 Interface Address: 13.1.1.1
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0001.01-00* 0x00000001 0x8F3D 905 0/0/0
Metric: 0 IS-Extended 0000.0000.0001.00
Metric: 0 IS-Extended 0000.0000.0002.00
0000.0000.0002.00-00 0x00000004 0xBB8D 1153 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 13.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0001.01
Admin-Group:
Group 0
Group 2
IPv4 Interface Address: 13.1.1.2
Neighbor IP Address: 13.1.1.1
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 13.1.1.0/24
R3
Check the output of “show clns neighbors” to verify that ISIS adjacency is up.
#show clns neighbors
Area 1:
System Id Interface SNPA State Holdtime Type Protocol
0000.0000.0002 eth2 5254.0062.3ea6 Up 28 L2 IS-IS
Check the output of “show isis database level-2 verbose” to verify that LSP does have configured admin-group constraints in Level-2.
R3#show isis database level-2 verbose
Tag 1: VRF : default
IS-IS Level-2 Link State Database:
LSPID LSP Seq Num LSP Checksum LSP Holdtime ATT/P/OL
0000.0000.0002.00-00 0x00000005 0x1FDE 1037 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.2
Router ID: 2.2.2.2
Metric: 10 IS-Extended 0000.0000.0003.01
Admin-Group:
Group 1
Group 3
IPv4 Interface Address: 15.1.1.2
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
Metric: 10 IP-Extended 13.1.1.0/24
0000.0000.0003.00-00* 0x00000004 0x71BF 1063 0/0/0
Area Address: 49.0001
NLPID: 0xCC
IP Address: 15.1.1.3
Router ID: 3.3.3.3
Metric: 10 IS-Extended 0000.0000.0003.01
Admin-Group:
Group 1
Group 3
IPv4 Interface Address: 15.1.1.3
Neighbor IP Address: 15.1.1.3
Maximum Link Bandwidth: 10g
Reservable Bandwidth: 10g
Unreserved Bandwidth:
Unreserved Bandwidth at priority 0: 10g
Unreserved Bandwidth at priority 1: 10g
Unreserved Bandwidth at priority 2: 10g
Unreserved Bandwidth at priority 3: 10g
Unreserved Bandwidth at priority 4: 10g
Unreserved Bandwidth at priority 5: 10g
Unreserved Bandwidth at priority 6: 10g
Unreserved Bandwidth at priority 7: 10g
TE-Default Metric: 10
Metric: 10 IP-Extended 15.1.1.0/24
0000.0000.0003.01-00* 0x00000001 0x9333 808 0/0/0
Metric: 0 IS-Extended 0000.0000.0003.00
Metric: 0 IS-Extended 0000.0000.0002.00