just a thought :
sh ip bgp neighbors | i Datagrams
maybe one router tries to negotiate the session with low datagram size
and the update storm floods the connection.
On Fri, 22 Jan 2010 02:06:53 +0100
Andy B. globic...@gmail.com wrote:
Hi,
here we go:
Core router that is causing headaches:
We had a somewhat similar problem with ospf/bgp which was eventually
resolved by making link mtu uniform across the links. Let me know if
this helps.
On Friday, 22 January, 2010 04:07 PM, Gergely Antal wrote:
just a thought :
sh ip bgp neighbors | i Datagrams
maybe one router tries to
MTU is 1500 on all links:
Core 1:
#sh int te9/1 | i MTU
MTU 1500 bytes, BW 1000 Kbit, DLY 10 usec,
#sh int te9/2 | i MTU
MTU 1500 bytes, BW 1000 Kbit, DLY 10 usec,
#sh int te8/1 | i MTU
MTU 1500 bytes, BW 1000 Kbit, DLY 10 usec,
Core 2:
#sh int te4/1 | i MTU
MTU 1500 bytes,
Hi,
I just fell over this thread while doing a little reseach to solve a
similar situation.
Hardware:
- 6509 with SUP720-3BXL on both ends
- SXF15a
- Uptime: 46 weeks
Problem:
- OSPF (for the loopback between cores) and BGP (mostly customers whom
we send the full table) going up and down all
Can you send your snipped OSPF config?
On Jan 21, 2010, at 5:28 PM, Andy B. wrote:
Hi,
I just fell over this thread while doing a little reseach to solve a
similar situation.
Hardware:
- 6509 with SUP720-3BXL on both ends
- SXF15a
- Uptime: 46 weeks
Problem:
- OSPF (for the
Hi,
here we go:
Core router that is causing headaches:
interface Loopback0
ip address x.x.x.130 255.255.255.255
interface TenGigabitEthernet9/1
ip address y.y.y.1 255.255.255.252
no ip redirects
no ip proxy-arp
no cdp enable
router ospf 1
router-id x.x.x.130
log-adjacency-changes
Drew Weaver wrote:
Howdy all,
Last night I had an interesting encounter on one of my 6509s /w SUP7203-BXL.
This switch has 3x iBGP sessions with full internet tables and is also
running OSPF.
Two of the three iBGP sessions randomly dropped with:
%BGP-3-NOTIFICATION: sent to neighbor
Howdy all,
Last night I had an interesting encounter on one of my 6509s /w SUP7203-BXL.
This switch has 3x iBGP sessions with full internet tables and is also running
OSPF.
Two of the three iBGP sessions randomly dropped with:
%BGP-3-NOTIFICATION: sent to neighbor x.x.x.3 4/0 (hold time
