[c-nsp] EIGRP between XR (PE) and XE (CE)

[Jason Lixfeld]

For the archives -

When using EIGRP inside a VRF, you need to specify an autonomous system number in the EIGRP config for that VRF:

!
router eigrp 21949
 vrf management
  address-family ipv4
   default-information allowed out
   autonomous-system 21949
   interface Loopback21949
   !
   interface TenGigE0/2/0/9.4003
   !
  !
 !
!

Works like a charm.

On 2013-05-31, at 5:56 PM, Jason Lixfeld <jason at lixfeld.ca> wrote:

> Hi,
> 
> It's been years since I've configured EIGRP and I remember it being quite simple, so I'm probably missing something silly, right?
> 
> I've done some debugs and XE sends hellos to XR, but the XR debug doesn't show the inbound hellos and doesn't seem to be sending any out itself.  It doesn't seem to be doing much of anything, as a matter of fact.
> 
> I've tried this on 4.2.3 and 4.3.1, no dice on either.
> 
> Anyone have any ideas?
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#sh debug
> Fri May 31 17:38:12.073 EDT
> 
> ####  debug flags set from tty 'vty0'  ####
> eigrp fsm flag is ON
> eigrp vrfs flag is ON
> eigrp packets flag is ON with value '0x0,none'
> eigrp internal flag is ON
> eigrp neighbor flag is ON with value 0
> eigrp transmit flag is ON with value 0
> 
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#
> 
> XR 4.2.1
> 
> !
> interface Loopback21949
> description Loopback for Management
> vrf management
> ipv4 address 10.219.49.1 255.255.255.255
> ipv6 address 2607:f0c8:0:1::1/128
> !
> interface TenGigE0/2/0/9.4003
> description 4500 Management
> mtu 1500
> vrf management
> ipv4 address 10.219.45.241 255.255.255.240
> encapsulation dot1q 4003
> !
> router eigrp 21949
> vrf management
>  address-family ipv4
>   default-information allowed out
>   interface Loopback21949
>   !
>   interface TenGigE0/2/0/9.4003
>   !
>  !
> !
> !
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#sh eigrp vrf management topology 
> Fri May 31 17:34:20.083 EDT
> 
> % IPv4-EIGRP: No routes found
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#sh eigrp vrf management neighbors 
> Fri May 31 17:34:29.539 EDT
> 
> % IPv4-EIGRP: No neighbors found for vrf management
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#sh eigrp vrf management interfaces 
> Fri May 31 17:30:51.410 EDT
> 
> IPv4-EIGRP interfaces for AS(0)
> 
>                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
> Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
> Lo21949            0        0/0         0     640/640          0           0
> Te0/2/0/9.4003     0        0/0         0     640/640          0           0
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#
> 
> XE 3.2.0 XO (4500 SUP7L-E)
> 
> !
> interface Loopback21949
> ip address 10.219.45.1 255.255.255.255
> !
> interface Vlan4003
> description Resi 4500 Management VLAN
> ip address 10.219.45.242 255.255.255.240
> logging event link-status
> !
> router eigrp 21949
> network 10.219.45.0 0.0.0.255
> passive-interface Loopback21949
> !
> 
> rgw01.lab#sh ip eigrp topology 
> EIGRP-IPv4 Topology Table for AS(21949)/ID(10.219.45.1)
> Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
>       r - reply Status, s - sia Status 
> 
> P 10.219.45.1/32, 1 successors, FD is 128256
>        via Connected, Loopback21949
> P 10.219.45.240/28, 1 successors, FD is 2816
>        via Connected, Vlan4003
> 
> rgw01.lab#sh ip eigrp neighbors 
> EIGRP-IPv4 Neighbors for AS(21949)
> rgw01.lab#sh ip eigrp interfaces 
> EIGRP-IPv4 Interfaces for AS(21949)
>                        Xmit Queue   Mean   Pacing Time   Multicast    Pending
> Interface        Peers  Un/Reliable  SRTT   Un/Reliable   Flow Timer   Routes
> Vl4003             0        0/0         0       0/1            0           0
> rgw01.lab#               
> 
> 
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#ping vrf management 10.219.45.242
> Fri May 31 17:35:18.255 EDT
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.219.45.242, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
> RP/0/RSP0/CPU0:bfr01.77MowatAv01.YYZ#
> 
> 
> rgw01.lab#ping 10.219.45.241
> 
> Type escape sequence to abort.
> Sending 5, 100-byte ICMP Echos to 10.219.45.241, timeout is 2 seconds:
> !!!!!
> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
> rgw01.lab#
> 
> 
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