Hello,
Im trying to get CSC Inter-AS working between ios (c1900-universalk9-mz.SPA.151-4.M4.bin) and ios-xr ( asr9000 4.1.0 ) and I'm unable to get it working. The end result is a CE running MPLS to xconnect into a asr9k för h-vpls type setup.
The L2VPN config is verified before by putting the CE into our IGP and everything works. However when wanting to use ebgp it falls apart:
Currently it is configured like this:
IOS CE:
interface Loopback0
ip address x.x.x.127 255.255.255.255
!
interface GigabitEthernet0/0.1549
encapsulation dot1Q 1549
ip address x.x.x.4 255.255.255.254
mpls bgp forwarding
mpls label protocol ldp
mpls ip
router bgp 64515
bgp router-id x.x.x.127
bgp always-compare-med
bgp log-neighbor-changes
neighbor x.x.x.5 remote-as 34244
!
address-family ipv4
network x.x.x.127 mask 255.255.255.255
neighbor x.x.x.5 activate
neighbor x.x.x.5 prefix-list x in
neighbor x.x.x.5 prefix-list x out
neighbor x.x.x.5 send-label
exit-address-family
!
address-family vpnv4
exit-address-family
!
mpls ldp router-id Loopback0 force
on P router:
interface Loopback0
ipv4 address x.x.x.120 255.255.255.255
!
router bgp 34244
bgp router-id x.x.x.120
bgp log neighbor changes detail
address-family ipv4 unicast
redistribute connected route-policy IPV4-CONNECTED-TO-BGP
redistribute static route-policy IPV4-STATIC-TO-BGP
allocate-label all
neighbor x.x.x.4
remote-as 64515
address-family ipv4 labeled-unicast
route-policy x in
route-policy x out
send-extended-community-ebgp
!
mpls ldp
router-id loopback0
interface gi0/1/0/15.1549
!
and the BGP seems to be working fine:
RP/0/RSP0/CPU0:rtr10.sjo#show bgp nei x.x.x.4
Fri Jul 20 11:30:37.769 METDST
BGP neighbor is x.x.x.4
Remote AS 64515, local AS 34244, external link
Remote router ID x.x.x.127
BGP state = Established, up for 19:26:04
Last read 00:00:34, Last read before reset 00:00:00
Hold time is 180, keepalive interval is 60 seconds
Configured hold time: 180, keepalive: 60, min acceptable hold time: 3
Last write 00:00:06, attempted 19, written 19
Second last write 00:01:06, attempted 19, written 19
Last write before reset 00:00:00, attempted 0, written 0
Second last write before reset 00:00:00, attempted 0, written 0
Last write pulse rcvd Jul 20 11:30:31.302 last full not set pulse count 2458
Last write pulse rcvd before reset 00:00:00
Socket not armed for io, armed for read, armed for write
Last write thread event before reset 00:00:00, second last 00:00:00
Last KA expiry before reset 00:00:00, second last 00:00:00
Last KA error before reset 00:00:00, KA not sent 00:00:00
Last KA start before reset 00:00:00, second last 00:00:00
Precedence: internet
Enforcing first AS is enabled
Neighbor capabilities:
Route refresh: advertised and received
4-byte AS: advertised and received
Address family IPv4 Labeled-unicast: advertised and received
Received 1285 messages, 0 notifications, 0 in queue
Sent 1174 messages, 0 notifications, 0 in queue
Minimum time between advertisement runs is 30 secs
For Address Family: IPv4 Labeled-unicast
BGP neighbor version 145723894
Update group: 0.1 Filter-group: 0.6 No Refresh request being processed
Extended community attribute sent to this neighbor
Route refresh request: received 0, sent 1
Policy for incoming advertisements is
Policy for outgoing advertisements is 1 accepted prefixes, 1 are bestpaths
Cumulative no. of prefixes denied: 0.
Prefix advertised 107, suppressed 0, withdrawn 3
Maximum prefixes allowed 131072
Threshold for warning message 75%, restart interval 0 min
An EoR was not received during read-only mode
Last ack version 145723894, Last synced ack version 0
Outstanding version objects: current 0, max 2
Additional-paths operation: None
Connections established 1; dropped 0
Local host: x.x.x.5, Local port: 179
Foreign host: x.x.x.4, Foreign port: 40925
Last reset 00:00:00
and all the routes look good etc.
But when I look in CEF:
RP/0/RSP0/CPU0:rtr10.sjo#show cef x.x.x.127/32
Fri Jul 20 11:33:31.282 METDST
x.x.x.127/32, version 18, drop adjacency, internal 0x4004001 (ptr 0xae650834) [1], 0x0 (0xace7ba70), 0x0 (0xadf366c0)
Updated Jul 19 16:24:29.011
Prefix Len 32, traffic index 0, precedence routine (0)
via x.x.x.4, 0 dependencies, recursive, bgp-ext [flags 0x20]
path-idx 0
unresolved
local label 16131
it does not seem able to resolve? Which is probably the reason it does not work?
Or have I missed any configuration, do anyone have a working ios-xr 4.1.0 ios inter-as setup working and can share the configuration?
Any hint is appreciated!
