[c-nsp] Trouble 6509s, can't establish BGP on point to point link

[Neal Rauhauser]

I have the following two 6509s connected via a short single mode fiber run -
they're about a hundred yards apart. BGP sessions between them bounce on the
BGP timer and never properly establish. This link carries a lot of traffic
and it never stumbles, not in terms of anything in logs, no errors on the
interface, no visible effect. It's just BGP.


 One of the machines has a production BGP setup and it works fine. The other
knows its world via OSPF.


 If I issue a “clear ip bgp *” on VT6509 I lose the ability to ping & telnet
to the machine on the other end of the link. Customers experience no traffic
interuption – it appears to be purely a problem with the supervisor's IP
stack. I can't reproduce the problem without BGP in the mix.



 What do I do next? Time for a new image? Which one, given these engines and
revision levels? We have BGP, OSPF, VRRP, and for reasons I am ashamed to
explain one of these devices has NAT running on it. I don't envision the
requirements changing all that much.


 Some words of wisdom here would be greatly appreciated ...



 VP6509

IOS (tm) s222_rp Software (s222_rp-ADVIPSERVICESK9_WAN-M), Version
12.2(18)SXF17a, RELEASE SOFTWARE (fc1)

BOOTLDR: s222_rp Software (s222_rp-ADVIPSERVICESK9_WAN-M), Version
12.2(18)SXF17a, RELEASE SOFTWARE (fc1)

System image file is "disk0:s222-advipservicesk9_wan-mz.122-18.SXF17a.bin"

cisco WS-C6509 (R7000) processor (revision 2.0) with 458752K/65536K bytes of
memory.

Processor board ID SCA0338003S

R7000 CPU at 300Mhz, Implementation 0x27, Rev 3.3, 256KB L2, 1024KB L3 Cache


 NAME: "1", DESCR: "WS-X6K-SUP2-2GE 2 ports Catalyst 6000 supervisor 2 Rev.
4.3"

PID: WS-X6K-SUP2-2GE

NAME: "msfc sub-module of 1", DESCR: "WS-F6K-MSFC2 Cat6k MSFC 2
daughterboard Rev. 2.5"

PID: WS-F6K-MSFC2

NAME: "switching engine sub-module of 1", DESCR: "WS-F6K-PFC2 Policy Feature
Card 2 Rev. 3.4"

PID: WS-F6K-PFC2

NAME: "2", DESCR: "WS-X6408-GBIC 8 port 1000mb ethernet Rev. 2.3"

PID: WS-X6408-GBIC



 VT6509

IOS (tm) s222_rp Software (s222_rp-ADVIPSERVICESK9_WAN-M), Version
12.2(18)SXF17a, RELEASE SOFTWARE (fc1)

BOOTLDR: s222_rp Software (s222_rp-ADVIPSERVICESK9_WAN-M), Version
12.2(18)SXF17a, RELEASE SOFTWARE (fc1)

System image file is "disk0:s222-advipservicesk9_wan-mz.122-18.SXF17a.bin"

cisco WS-C6509 (R7000) processor (revision 2.0) with 458752K/65536K bytes of
memory.

Processor board ID SCA044200US

R7000 CPU at 300Mhz, Implementation 0x27, Rev 2.1, 256KB L2, 1024KB L3 Cache


 NAME: "1", DESCR: "WS-X6K-SUP2-2GE 2 ports Catalyst 6000 supervisor 2 Rev.
5.1"

PID: WS-X6K-SUP2-2GE

NAME: "msfc sub-module of 1", DESCR: "WS-F6K-MSFC2 Cat6k MSFC 2
daughterboard Rev. 1.2"

PID: WS-F6K-MSFC2

NAME: "switching engine sub-module of 1", DESCR: "WS-F6K-PFC2 Policy Feature
Card 2 Rev. 3.5

PID: WS-F6K-PFC2

NAME: "2", DESCR: "WS-X6408-GBIC 8 port 1000mb ethernet Rev. 2.4"

PID: WS-X6408-GBIC




 !VP6509

interface Loopback0

ip address 192.168.200.1 255.255.255.255


 interface GigabitEthernet2/1

ip address 192.168.200.34 255.255.255.252

no ip redirects

ip nat inside

ip route 192.168.200.2 255.255.255.255 192.168.200.33


 !VT6509

interface Loopback0

ip address 192.168.200.2 255.255.255.255

interface GigabitEthernet2/1

ip address 192.168.200.33 255.255.255.252

load-interval 30

ip route 192.168.200.1 255.255.255.255 192.168.200.34