OcNOS-RON-6.3.1 : Layer 3 Guide : Border Gateway Protocol Command Reference : BGP Show Commands : show ip bgp cidr-only
show ip bgp cidr-only
Use this command to display routes with non-natural network masks.
Command Syntax
show ip bgp cidr-only
show ip bgp ipv4 (unicast|multicast) cidr-only
Parameters
ipv4
IPv4 routes
unicast
Unicast prefixes
multicast
Multicast prefixes
Command Mode
Privileged Exec mode and Exec mode
Applicability
This command was introduced before OcNOS version 1.3.
Example
This is a sample output from the show ip bgp cidr-only command.
#show ip bgp cidr-only
BGP table version is 0, local router ID is 10.10.10.50
Status codes: s suppressed, d damped, h history, p stale, * valid, > best, i - internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 3.3.3.0/24 10.10.10.10 0 11 i
Total number of prefixes 2
 
Table 4-66 explains the status codes in the header.
 
Table 4-66: status codes 
Status code
Description
Comments
s
suppressed
Whether the route is suppressed and will not be advertised to the neighbors.
d
damped
When the penalty of a flapping route exceeds the suppress limit, the route is damped and remains in a withdrawn state until its penalty decreases below the reuse limit.
h
history
When the penalty of a flapping route does not exceed the suppress limit, the route is not damped and BGP maintains a history of the flapping route.
p
stale
When the BGP neighbor from which a route is learned is in graceful restart, the route is retained in the BGP routing table, but marked as stale.
*
valid
Whether the route is valid. When a route is not suppressed, damped, or present in the history, it is valid.
>
best
The route selected as the best path and installed in the kernel routing table.
i
internal
Whether the route is learned from an iBGP peer. If this symbol is not present, the route was learned from an eBGP peer.
Origin codes: i - IGP, e - EGP, ? - incomplete
Table 4-67 explains the codes are at the end of each routing entry that show where the route originated.
 
Table 4-67: origin codes
Origin code
Description
Comments
i
IGP
The route originated from an Interior Gateway Protocol.
e
EGP
The route originated from an Exterior Gateway Protocol.
?
incomplete
Origin not known. Typically, these are routes redistributed from an Interior Gateway Protocol.
Route Entry Fields
Table 4-68 explains the fields shows for each route.
 
Table 4-68: route entry fields 
Field
Description
Network
Network prefix installed in BGP. If multiple routes exist for the same prefix, only the first prefix is identified and others have blank spaces.
The status codes are explained in Table 4-66.
Next Hop
IP address of the nexthop for this route.
Metric
Multiple-Exit Discriminator (MED). If there are multiple paths to the same destination from a single routing protocol, then the multiple paths have the same administrative distance and the best path is selected based on this metric. The path with the lowest metric is selected as the optimal path and installed in the routing table.
LocPrf
Local preference set with the set local-preference command. This value is used only with iBGP sessions within the local autonomous system to determine if a route towards a destination is the “best” one. The path with the highest local preference is preferred.
Weight
This field applies only to routes within an individual router. If a route was learned from a peer, it has a default weight of 0. All routes generated by the local router have a weight of 32,768.
Path and origin
The autonomous systems through which the prefix advertisement passed.
The origin codes are explained in Table 4-67
 
Last modified date: 07-13-2023