03-05-2011 10:57 PM - edited 03-06-2019 03:54 PM
sh ip mr count
IP Multicast Statistics
10 routes using 3708 bytes of memory
7 groups, 0.14 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)
Group: 224.0.1.50, Source count: 0, Packets forwarded: 0, Packets received: 0
Group: 235.80.1.1, Source count: 0, Packets forwarded: 0, Packets received: 0
Group: 239.255.1.1, Source count: 1, Packets forwarded: 0, Packets received: 7065
RP-tree: Forwarding: 0/0/0/0, Other: 0/0/0
Source: 10.1.12.1/32, Forwarding: 0/-31/0/0, Other: 7065/0/7065
Getting Pkts per second in negative and other drops are more any idea?
03-11-2011 09:42 AM
The Other drops increment due to things like OIF list was empty or because the packets were discarded because of a configuration, such as ip multicast rate-limit, was enabled.
First, is this incrementing? Are you getting joins on the group? Do you see 239.255.1.1 in the OIL (show ip mroute)?
Do you see drops on interfaces or input / output buffers?
http://www.cisco.com/en/US/tech/tk828/technologies_tech_note09186a0080094b55.shtml#multicast
03-13-2011 09:29 PM
Hi Nelson,
Yes. It's incrementing. router is joining the group but it's not forwardin the traffic. In router show ip mroute has the group 239.255.1.1
1. Packets forwarded: 0, Packets received: 12056
2. We see input drops in Lan interfaces -
Input queue: 1/75/182/0
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