I am having problems getting bgp qos to work on 7600 running RSP 720 with SRB1.
Relevant config as follows:
bgp-policy destination ip-prec-map - applied on relevant interfaces
table-map bgp-qos-table - defined under address-family ipv4
route-map bgp-qos-table permit 10
match community 1
set ip precedence flash-override
ip community list:
ip community-list 1 permit xxxx:xxxx
show ip route output:
show ip route x.x.x.x
Routing entry for x.x.x.x/32
Known via "bgp XXXX", distance 200, metric 0, precedence flash-override (4), type internal
Last update from x.x.x.x 7w0d ago
Routing Descriptor Blocks:
* x.x.x.x, from x.x.x.x, 7w0d ago
Route metric is 0, traffic share count is 1
AS Hops 0
show ip cef x.x.x.x detail
x.x.x.x/32, epoch 11
QOS: Precedence flash-override (4)
NetFlow: Origin AS 0, Peer AS 0, Mask Bits 32
So, it appears that things are working on the surface, however packets being sent through the router (and arriving on interfaces with the prec-map command enabled) are not being marked correctly.
The interfaces in question are on a SIP-400 card (gigE). We have observed this problem on other line cards (48 port GE and 10/100 line cards - don't have the exact line card versions atm).
Does anybody know of any restrictions with bgp qos on 7600?
We have verified there are no markings by sniffing at various points in the network (including mirrored ports on egress from the router that should be doing the marking).
Any feedback much appreciated..