[c-nsp] Incompatibility for send-label between Cisco and Juniper?

[Jason Koh]

Hi all

I encountered something strange with the neighbor <peer> send-label command under router bgp. When I attach a route-map controlling which labels to send, instead of restricting labels to send, it completely fails to advertise routes besides the one specified in the prefix-list. This problem does not happen between Cisco and Cisco.

Here are my output for the Cisco to Juniper.

With the send-label command:

test22#sh ip bgp neighbors 10.169.34.1 advertised-routes 
BGP table version is 183, local router ID is 192.168.38.22
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
r>i192.168.38.19/32 192.168.38.19            0    100      0 i

Total number of prefixes 1 

Without the send-label command:

test22#sh ip bgp neighbors 10.169.34.1 advertised-routes 
BGP table version is 175, local router ID is 192.168.38.22
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
r>i99.99.99.1/32    192.168.38.19            0    100      0 i
*> 172.16.100.0/24  0.0.0.0                  0         32768 i
*>i192.168.0.0      192.168.38.19            0    100      0 3 i
r>i192.168.38.19/32 192.168.38.19            0    100      0 i

Config as follows

address-family ipv4
 neighbor 10.169.34.1 activate
 neighbor 10.169.34.1 soft-reconfiguration inbound
 neighbor 10.169.34.1 route-map TEST out
 neighbor 10.169.34.1 send-label

route-map TEST permit 10
 match ip address prefix-list TEST
 set mpls-label
!
route-map TEST permit 20

ip prefix-list TEST seq 5 permit 192.168.38.19/32

Total number of prefixes 4 

Hopefully someone can help me with this. Thanks.


Jason Koh
Senior Network Engineer
Pacific Internet Ltd