Static Configuration
Static MLAG provides node-level redundancy by allowing two or more nodes in the network to share a common static-LAG endpoint. It emulates multiple nodes to represent as a single logical node to the remote node having static Link aggregation. As a result, even if one of the nodes is down there exists a path to reach the destination via other nodes.
Topology
Figure 9-16: Static MLAG topology
L2SW
#configure terminal | Enter configure mode. |
(config)#hostname L2SW | Configuring host name |
(config)#bridge 1 protocol rstp vlan-bridge | Create a RSTP VLAN bridge on customer side |
(config)#vlan 2 bridge 1 state enable | Configure VLAN for the bridge |
(config)#interface sa1 | Enter the interface mode |
(config-if)#bridge-group 1 spanning-tree disable | Disable the spanning-tree for the interface |
(config-if)#switchport mode hybrid | Configure the mode as hybrid |
(config-if)#switchport hybrid allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe2 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe9 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe11 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe22 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe47 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 spanning-tree disable | Disable the spanning-tree for the interface |
(config-if)#switchport mode hybrid | Configure the mode as hybrid |
(config-if)#switchport hybrid allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#exit | Exit the interface mode |
TOR1
#configure terminal | Enter configure mode. |
(config)#hostname TOR1 | Configuring host name |
(config)#bridge 1 protocol provider-rstp edge | Create a PROVIDER-RSTP EDGE bridge |
(config)#vlan 2 bridge 1 state enable | Configure VLAN for the bridge |
(config)#vlan 200 type service point-point bridge 1 state enable | Configure SVLAN for the bridge |
(config)#cvlan registration table map1 bridge 1 | Configure cvlan-svlan mapping registration table for the bridge |
(config-cvlan-registration)#cvlan 2 svlan 200 | Map CVLAN to SVLAN |
(config-cvlan-registration)#exit | Exit the config-cvlan-registration mode |
(config)#interface mlag1 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode customer-edge hybrid | Configure the mode as customer-edge hybrid |
(config-if)#switchport customer-edge hybrid allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#switchport customer-edge vlan registration map1 | Map the cvlan registration table into the MLAG interface |
(config-if)#exit | Exit the interface mode |
(config)#interface mlag2 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode provider-network | Configure the mode as provider-network |
(config-if)#switchport provider-network allowed vlan all | Configure allowed VLAN all on the interface |
(config)#interface sa1 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#mlag 1 | Map MLAG on SA interface |
(config-if)#exit | Exit the interface mode |
(config)#interface sa2 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#mlag 2 | Map MLAG on SA interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe1 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map static channel-group to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe13 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map static channel-group to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe9 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel-group to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe11 | Enter the interface mode |
(config-if)#static-channel-group 1 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface sa5 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode provider-network | Configure the mode as provider network |
(config-if)#switchport provider-network allowed vlan all | Configure allowed VLAN all on the interface |
(config)#interface xe3 | Enter the interface mode |
(config-if)#static-channel-group 5 | Map static channel-group to the interface |
(config)#interface xe5 | Enter the interface mode |
(config-if)#static-channel-group 5 | Map static channel-group to the interface |
(config-if)#exit | Exit the interface mode |
(config)#mcec domain configuration | Enter the MLAG domain configuration mode |
(config-mcec-domain)#domain-address 1111.2222.3333 | Configure the MLAG domain address |
(config-mcec-domain)#domain-system-number 1 | Configure MLAG domain system number |
(config-mcec-domain)#intra-domain-link sa5 | Configure the intra domain link |
TOR2
#configure terminal | Enter configure mode. |
(config)#hostname TOR2 | Configuring host name |
(config)#bridge 1 protocol provider-rstp edge | Create a PROVIDER-RSTP EDGE bridge |
(config)#vlan 2 bridge 1 state enable | Configure VLAN for the bridge |
(config)#vlan 200 type service point-point bridge 1 state enable | Configure SVLAN for the bridge |
(config)#cvlan registration table map1 bridge 1 | Configure cvlan-svlan mapping registration table for the bridge |
(config-cvlan-registration)#cvlan 2 svlan 200 | Map CVLAN to SVLAN |
(config-cvlan-registration)#exit | Exit the config-cvlan-registration mode |
(config)#interface mlag1 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode customer-edge hybrid | Configure the mode as customer-edge hybrid |
(config-if)#switchport customer-edge hybrid allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#switchport customer-edge vlan registration map1 | Map the cvlan registration table into the MLAG interface |
(config-if)#exit | Exit the interface mode |
(config)#interface mlag2 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode provider-network | Configure the mode as provider-network |
(config-if)#switchport provider-network allowed vlan all | Configure allowed VLAN all on the interface |
(config)#interface sa1 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#mlag 1 | Map MLAG on SA interface |
(config-if)#exit | Exit the interface mode |
(config)#interface sa2 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#mlag 2 | Map MLAG on SA interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe11 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe38 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map static channel to the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe2 | Enter the interface mode |
(config-if)#static-channel-group 1 | Create static channel group |
(config-if)#exit | Exit the interface mode |
(config)#interface xe22 | Enter the interface mode |
(config-if)#static-channel-group 1 | Create static channel group |
(config-if)#exit | Exit the interface mode |
(config)#interface sa5 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 | Associate the interface to bridge |
(config-if)#switchport mode provider-network | Configure the mode as provider network |
(config-if)#switchport provider-network allowed vlan all | Configure allowed VLAN all on the interface |
(config)#interface xe3 | Enter the interface mode |
(config-if)#static-channel-group 5 | Map static channel-group to the interface |
(config)#interface xe5 | Enter the interface mode |
(config-if)#static-channel-group 5 | Map static channel-group to the interface |
(config-if)#exit | Exit the interface mode |
(config)#mcec domain configuration | Enter the MLAG domain configuration mode |
(config-mcec-domain)#domain-address 1111.2222.3333 | Configure the MLAG domain address |
(config-mcec-domain)#domain-system-number 2 | Configure MLAG domain system number |
(config-mcec-domain)#intra-domain-link sa5 | Configure the intera domain link |
(config-if)#exit | Exit the interface mode |
LEAF
#configure terminal | Enter configure mode. |
(config)#hostname LEAF | Configuring host name |
(config)#bridge 1 protocol provider-rstp edge | Create a PROVIDER-RSTP EDGE bridge |
(config)#vlan 2 bridge 1 state enable | Configure VLAN for the bridge |
(config)#vlan 200 type service point-point bridge 1 state enable | Configure SVLAN for the bridge |
(config)#cvlan registration table map1 bridge 1 | Configure cvlan-svlan mapping registration table for the bridge |
(config-cvlan-registration)#cvlan 2 svlan 200 | Map CVLAN to SVLAN |
(config-cvlan-registration)#exit | Exit the config-cvlan-registration mode |
(config)#interface sa2 | Enter the interface mode |
(config-if)#swtichport | Make the interface a switch port |
(config-if)#bridge-group 1 spanning-tree disable | Disable the spanning-tree for the interface |
(config-if)#switchport mode provider-network | Configure the mode as provider-network |
(config-if)#)#switchport provider-network allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#exit | Exit the interface mode |
(config)#interface xe1 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map the interface to the static channel-group |
(config-if)#exit | Exit the interface mode |
(config)#interface xe13 | Enter the interface mode |
(config-if)#static-channel-group 2 | Create static channel group |
(config-if)#exit | Exit the interface mode |
(config)#interface xe11 | Enter the interface mode |
(config-if)#static-channel-group 2 | Map the interface to the static channel-group |
(config-if)#exit | Exit the interface mode |
(config)#interface xe38 | Enter the interface mode |
(config-if)#static-channel-group 2 | Create static channel group |
(config-if)#exit | Exit the interface mode |
(config)#interface xe47 | Enter the interface mode |
(config-if)#switchport | Make the interface as switch port |
(config-if)#bridge-group 1 spanning-tree disable | Disable the spanning-tree for the interface |
(config-if)#switchport mode customer-edge hybrid | Configure the mode as customer-edge hybrid |
(config-if)#switchport customer-edge hybrid allowed vlan all | Configure allowed VLAN all on the interface |
(config-if)#switchport customer-edge vlan registration map1 | Map the cvlan registration table into the MLAG interface |
(config-if)#exit | Exit the interface mode |
Validation
TOR1#show mlag 1 detail
MLAG-1
Mapped Aggregator : sa1
Admin Key : 16385
Oper Key : 16385
Physical properties Digest : d a6 26 2d fa 9a 5c 7b e6 15 79 c2 d5 9c 57 cc
Neigh Admin Key : 32769
Neigh Physical Digest : d a6 26 2d fa 9a 5c 7b e6 15 79 c2 d5 9c 57 cc
Info RCV State : Current
Info Periodic Time State : Standby
Total Bandwidth : 40g
Mlag Sync : IN_SYNC
Mode : Active
TOR1#
TOR1#show mlag domain summary
------------------------------------
Domain Configuration
------------------------------------
Domain System Number : 1
Domain Address : 1111.2222.3333
Domain Priority : 32768
Intra Domain Interface : sa5
Domain Adjacency : UP
------------------------------------
MLAG Configuration
------------------------------------
MLAG-1
Mapped Aggregator : sa1
Physical properties Digest : d a6 26 2d fa 9a 5c 7b e6 15 79 c2 d5 9c 57 cc
Total Bandwidth : 40g
Mlag Sync : IN_SYNC
Mode : Active
MLAG-2
Mapped Aggregator : sa2
Physical properties Digest : ae 56 a1 c5 b9 dc 46 a4 5d 97 dc 79 9c 6f a5 c8
Total Bandwidth : 40g
Mlag Sync : IN_SYNC
Mode : Active
TOR1#
TOR1#show mlag domain detail
------------------------------------
Domain Configuration
------------------------------------
Domain System Number : 1
Domain Address : 1111.2222.3333
Domain Priority : 32768
Intra Domain Interface : sa5
Hello RCV State : Current
Hello Periodic Timer State : Slow Periodic
Domain Sync : IN_SYNC
Neigh Domain Sync : IN_SYNC
Domain Adjacency : UP
------------------------------------
MLAG Configuration
------------------------------------
MLAG-1
Mapped Aggregator : sa1
Admin Key : 16385
Oper Key : 16385
Physical properties Digest : d a6 26 2d fa 9a 5c 7b e6 15 79 c2 d5 9c 57 cc
Neigh Admin Key : 32769
Neigh Physical Digest : d a6 26 2d fa 9a 5c 7b e6 15 79 c2 d5 9c 57 cc
Info RCV State : Current
Info Periodic Time State : Standby
Total Bandwidth : 40g
Mlag Sync : IN_SYNC
Mode : Active
MLAG-2
Mapped Aggregator : sa2
Admin Key : 16386
Oper Key : 16386
Physical properties Digest : ae 56 a1 c5 b9 dc 46 a4 5d 97 dc 79 9c 6f a5 c8
Neigh Admin Key : 32770
Neigh Physical Digest : ae 56 a1 c5 b9 dc 46 a4 5d 97 dc 79 9c 6f a5 c8
Info RCV State : Current
Info Periodic Time State : Standby
Total Bandwidth : 40g
Mlag Sync : IN_SYNC
Mode : Active
TOR1#
Last modified date: 07/13/2023