Hi,
I just spent two days debugging a multicast issue with a quad sup2t 6509
running 151-2.SY3
I am at my wits end and while I wait for the customers cisco partner to finally
escalate the case
we opened to cisco I would like to try my luck here.
It seems that the box no longer does HW Forwarding for ip mfib.
Router#show ip mfib
Entry Flags: C - Directly Connected, S - Signal, IA - Inherit A flag,
ET - Data Rate Exceeds Threshold, K - Keepalive
DDE - Data Driven Event, HW - Hardware Installed
I/O Item Flags: IC - Internal Copy, NP - Not platform switched,
NS - Negate Signalling, SP - Signal Present,
A - Accept, F - Forward, RA - MRIB Accept, RF - MRIB
Forward,
MA - MFIB Accept
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kbits per second
Other counts: Total/RPF failed/Other drops
I/O Item Counts: FS Pkt Count/PS Pkt Count
Default
(*,224.0.0.0/4) Flags: C
SW Forwarding: 0/0/0/0, Other: 0/0/0
Null0 Flags: NS
(*,224.0.1.40) Flags: C
SW Forwarding: 0/0/0/0, Other: 0/0/0
Tunnel2 Flags: A
Vlan50 Flags: F IC NS
Pkts: 0/0
(*,239.0.0.30) Flags: C
SW Forwarding: 0/0/0/0, Other: 0/0/0
Tunnel2 Flags: A
Vlan50 Flags: F NS
Pkts: 0/0
Tunnel4, MDT Decap Flags: F NS
Pkts: 0/0
The box started dropping so many mcast packets that iptv streams where not
showing anymore.
A full power cycle [1] in the service window resolved the issue for a couple of
hours.
The next morning HW Forwrding was gone again.
I have not found a way to renable HW Forwarding and am unsure about the real
cause of this as the
config had been working fine for 4 years and then broke over night.
[1] We initially wanted to upgrade to 151-2.SY12 in the service window but the issu upgrade failed
miserably and we had to had to hard reboot sups from the cmp. But that is another story.
Any ideas ?
Greetings
Christian
--
Christian Kratzer CK Software GmbH
Email: c...@cksoft.de Wildberger Weg 24/2
Phone: +49 7032 893 997 - 0 D-71126 Gaeufelden
Fax: +49 7032 893 997 - 9 HRB 245288, Amtsgericht Stuttgart
Mobile: +49 171 1947 843 Geschaeftsfuehrer: Christian Kratzer
Web: http://www.cksoft.de/
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