05-20-2013 11:02 AM
Hi
the diagram especifie the actually operating network

we try to advertise the network 172.16.161.6 to Nortel devices and Cisco devices on cisco AS 2005 and 64912, if we are staying look the routing table on cisco 7600 the network 172.16.161.6 is know it
Success rate is 100 percent (5/5), round-trip min/avg/max = 20/24/28 ms
cisco 7600#trace
cisco 7600#traceroute vrf data 172.16.161.6
Type escape sequence to abort.
Tracing the route to 172.16.161.6
1 189.1.11.5 [MPLS: Labels 581/730 Exp 0] 24 msec 24 msec 24 msec
2 172.16.12.73 [MPLS: Label 730 Exp 0] 36 msec 28 msec 36 msec
3 172.16.12.74 20 msec 20 msec 24 msec
4 172.16.14.10 64 msec 20 msec 20 msec
5 172.16.19.9 20 msec 24 msec 20 msec
6 172.16.161.6 24 msec 20 msec 24 msec
PE_CAR_1#ping vrf data 172.16.161.6
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.161.6, timeout is 2 seconds:
!!!!!
but the devices Nortel on AS 64912 on routing tables don´t know the networ 172.16.161.6
the difference on cisco 7600 that know both AS 64912 and 2005 is this one:
configuration on Cisco Router 7600
router bgp 2006
bgp router-id 172.16.110.97
bgp log-neighbor-changes
bgp graceful-restart restart-time 120
bgp graceful-restart stalepath-time 360
bgp graceful-restart
neighbor 172.16.10.41 remote-as 64912
neighbor 172.16.10.41 description PP-A6
neighbor 172.16.11.233 remote-as 64912
neighbor 172.16.11.233 description PP-2TE2
neighbor 172.16.12.73 remote-as 2005
neighbor 172.16.12.73 description PE_MEX_1
neighbor 172.16.12.73 fall-over bfd
neighbor 172.16.13.9 remote-as 2005
neighbor 172.16.13.9 description PE_MEX_3
neighbor 172.16.13.9 fall-over bfd
neighbor 172.16.13.77 remote-as 2005
neighbor 172.16.14.6 remote-as 64512
neighbor 172.16.14.10 remote-as 64512
neighbor 172.16.16.26 remote-as 64982
neighbor 172.16.16.26 description INTERNET-2
neighbor 172.16.16.30 remote-as 64982
neighbor 172.16.16.30 description INTERNET-1
!
address-family ipv4
neighbor 172.16.10.41 activate (conexion to Nortel Devices)
neighbor 172.16.10.41 route-map AS-PATH-MAN in
neighbor 172.16.10.41 route-map REDES-WAN->MAN out
neighbor 172.16.11.233 activate (conexion to Nortel Devices)
neighbor 172.16.11.233 route-map AS-PATH-MAN in
neighbor 172.16.11.233 route-map REDES-WAN->MAN out
neighbor 172.16.12.73 activate
neighbor 172.16.12.73 route-map REDES-WAN-PE_MEX_1 in
neighbor 172.16.12.73 route-map DEFAULT-ROUTE out
neighbor 172.16.13.9 activate (conexion to Cisco 7600 Devices)
neighbor 172.16.13.9 route-map REDES-WAN-PE_MEX_3 in
neighbor 172.16.13.9 route-map DEFAULT-ROUTE out
neighbor 172.16.13.77 activate
neighbor 172.16.13.77 route-map DEFAULT-ROUTE out
neighbor 172.16.14.6 activate (conexion to ASR 9000)
neighbor 172.16.14.6 route-map default out
neighbor 172.16.14.10 activate (conexion to ASR 9000)
neighbor 172.16.14.10 route-map default out
the difference that look it from routes to know Nortel devices an Cisco Devices is the sollow on Cisco 7600
Cisco 7600#sho ip bgp 150.151.1.250
BGP routing table entry for 150.151.0.0/16, version 5612717
Paths: (2 available, best #1, table default)
Multipath: eBGP
Advertised to update-groups:
2 4
2005
172.16.13.9 from 172.16.13.9 (150.220.250.5)
Origin IGP, localpref 300, valid, external, best
Community: 100:22
Extended Community: RT:100:22
2005
172.16.12.73 from 172.16.12.73 (150.220.250.1)
Origin IGP, localpref 260, valid, external
Community: 100:22
Extended Community: RT:100:22
Cisco 7600#sho ip bgp 172.16.161.6
BGP routing table entry for 172.16.161.6/32, version 6133620
Paths: (2 available, best #2, table default)
Multipath: eBGP
Not advertised to any peer
64512 64513
172.16.14.6 from 172.16.14.6 (172.16.14.1)
Origin incomplete, localpref 100, valid, external, multipath
Extended Community: RT:64512:64513
64512 64513
172.16.14.10 from 172.16.14.10 (172.16.14.2)
Origin incomplete, localpref 100, valid, external, multipath, best
Extended Community: RT:64512:64513
NOT advertised to any peer
if we looking on ASR the vrf GAT the network is advertised but on vrf CAMPUS not
RP/0/RSP0/CPU0:ED_MEX_1#sho bgp vrf CAMPUS 172.16.161.6
Mon May 20 12:58:03.516 UTC
BGP routing table entry for 172.16.161.6/32, Route Distinguisher: 64512:64513
Versions:
Process bRIB/RIB SendTblVer
Speaker 20 20
Local Label: 16004
Last Modified: May 17 17:24:29.877 for 2d19h
Paths: (1 available, best #1)
Not advertised to any peer
Path #1: Received by speaker 0
Not advertised to any peer
64513
172.16.19.5 from 172.16.19.5 (172.16.162.4)
Origin incomplete, metric 110, localpref 100, valid, external, best, group-best, import-candidate
Received Path ID 0, Local Path ID 1, version 20
Extended community: RT:64512:64513
but the vrf GAT:
RP/0/RSP0/CPU0:ED_MEX_1#sho bgp vrf GAT 172.16.161.6
Mon May 20 12:58:52.909 UTC
BGP routing table entry for 172.16.161.6/32, Route Distinguisher: 64512:2006
Versions:
Process bRIB/RIB SendTblVer
Speaker 30 30
Last Modified: May 17 17:24:29.877 for 2d19h
Paths: (1 available, best #1)
Advertised to CE peers (in unique update groups):
172.16.14.5
Path #1: Received by speaker 0
Advertised to CE peers (in unique update groups):
172.16.14.5
64513
172.16.19.5 from 172.16.19.5 (172.16.162.4)
Origin incomplete, metric 110, localpref 100, valid, external, best, group-best, import-candidate, imported
Received Path ID 0, Local Path ID 1, version 30
Extended community: RT:64512:64513
Any idea for this trouble, we try to advertise the extend community but nothing.
the configuration on ASR is the follow:
router bgp 64512
bgp router-id 172.16.14.1
address-family ipv4 unicast
!
address-family vpnv4 unicast
!
vrf GAT
rd 64512:2006
address-family ipv4 unicast
redistribute connected
redistribute static
!
neighbor 172.16.14.5
remote-as 2006
address-family ipv4 unicast
send-community-ebgp
route-policy pass-all in
route-policy pass-all out
send-extended-community-ebgp
!
!
!
vrf CAMPUS
rd 64512:64513
address-family ipv4 unicast
redistribute connected
redistribute static
!
neighbor 172.16.19.5
remote-as 64513
address-family ipv4 unicast
route-policy pass-all in
route-policy pass-all out
we only put send-extended-community-ebgp only on vrf GAT.
Best Regards
Solved! Go to Solution.
05-20-2013 04:45 PM
Hi Saul,
route-target extended communities are normally not sent to the peers in the VRF (ce). Can you remove the command
send-extended-community-ebgp from the neighbor in vrf GAT and try to see if the 7600 passes it on to the Nortel and Cisco devices.
Regards
05-20-2013 04:45 PM
Hi Saul,
route-target extended communities are normally not sent to the peers in the VRF (ce). Can you remove the command
send-extended-community-ebgp from the neighbor in vrf GAT and try to see if the 7600 passes it on to the Nortel and Cisco devices.
Regards
05-22-2013 11:30 AM
Hi Harold thanks for your comment
We do it your recommendation and put on AS 64912 routes a route-map for identify the traffic IN on interface the finally configuration on cisco 7600 is:
router bgp 2006
bgp router-id 172.16.110.97
bgp log-neighbor-changes
bgp graceful-restart restart-time 120
bgp graceful-restart stalepath-time 360
bgp graceful-restart
neighbor 172.16.14.6 remote-as 64512
neighbor 172.16.14.6 description EDGE_MEX_1
neighbor 172.16.14.10 remote-as 64512
neighbor 172.16.14.10 description EDGE_MEX_2
!
address-family ipv4
no synchronization
neighbor 172.16.14.6 route-map REDES_CAMPUS in
neighbor 172.16.14.6 route-map default out
neighbor 172.16.14.10 activate
neighbor 172.16.14.10 route-map REDES_CAMPUS in
neighbor 172.16.14.10 route-map default out
neighbor 172.16.16.26 activate
with the follow route maps:
ip extcommunity-list standard GAT permit rt 64512:64513
ip bgp-community new-format
ip community-list standard REDES-GAT permit 64512:2006
route-map REDES_CAMPUS permit 430
match extcommunity GAT
set local-preference 250
set community 64512:2006 additive
set extcommunity rt 64512:64513 additive
route-map REDES-WAN->MAN permit 1600
match community REDES-GAT
with this information the routes advertise on neighbord know the loopback 172.16.161.6
GW_MEX_2#sho ip bgp neighbors 172.16.11.233 advertised-routes
BGP table version is 6160029, local router ID is 172.16.110.97
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
*> 1.0.0.1/32 172.16.12.73 300 0 2005 ?
*> 1.0.0.2/32 172.16.12.73 300 0 2005 ?
Network Next Hop Metric LocPrf Weight Path
*> 172.16.140.72/32 172.16.13.9 300 0 2005 ?
*> 172.16.141.22/32 172.16.12.73 250 0 2005 ?
*> 172.16.141.61/32 172.16.12.73 250 0 2005 i
*> 172.16.141.71/32 172.16.12.73 250 0 2005 i
*> 172.16.142.0/27 172.16.13.9 300 0 2005 ?
*> 172.16.142.32/27 172.16.13.9 250 0 2005 ?
*> 172.16.144.0/27 172.16.13.9 300 0 2005 ?
*> 172.16.146.1/32 172.16.13.9 300 0 2005 65451 i
*> 172.16.150.0/27 172.16.12.73 250 0 2005 ?
*> 172.16.152.0/27 172.16.13.9 300 0 2005 ?
*> 172.16.152.32/28 172.16.13.9 300 0 2005 ?
*> 172.16.155.1/32 172.16.13.9 300 0 2005 ?
*> 172.16.161.1/32 172.16.14.6 0 250 0 64512 ?
*> 172.16.161.6/32 172.16.14.10 0 250 0 64512 ?
Thanks for your cooperation
Best Regards
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