Nexus 5500 IGMP mdns airplay

[paul-d]

Hi,

I'm trying to setup airprint on a 9800 WLC and it looks like our Nexus 5596 is possibly dropping the multicast traffic, I can see this in the debug however I'm not sure how to get it to work and permit the traffic, any advice please.

2024 Jan 23 igmp: SN: <1201> Process a valid IGMP packet, pkttype:v3report(34), iif:Po34
2024 Jan 23 igmp: SN: <1201> Processing v3 report with 1 group records, packet-size 16 from 100.64.3.53 on Po34
2024 Jan 23 igmp: SN: <1201> Group record for link-local group 224.0.0.251 is ignored, skipping...

100.64.0.8 is the printers IP address,

[marce1000]

 - You may find this useful  : https://bst.cloudapps.cisco.com/bugsearch/bug/CSCth50290
                                                 Have a look at the Workaround too ,

[paul-d]

Hi,

We seem to be getting furthur, thank you, 

here is the latest output, I can see it says forwarding to router-port, it may sound silly but do I have to tell it the router port?

2024 Jan 23 igmp: SN: <1201> Process a valid IGMP packet, pkttype:v3report(34), iif:Po34
2024 Jan 23 igmp: SN: <1201> Processing v3 report with 1 group records, packet-size 16 from 100.64.0.8 on Po34
2024 Jan 23 igmp: SN: <1201> Record type: "mode-is-exclude" for group 224.0.0.251, sources count: 0
2024 Jan 23 igmp: SN: <1201> Received v3 report: group 224.0.0.251 from 100.64.0.8 on Po34
2024 Jan 23 igmp: SN: <1201> Updated oif Po34 for (*, 224.0.0.251) entry
2024 Jan 23 igmp: SN: <1201> Processing reportfrom_cfs: 0, on_internal_mcec: 0, im_is_iod_valid: 1im_is_if_up: 1 im_id_ifindex_veth = 0, rc = 0, ifindex = Po34
2024 Jan 23 igmp: SN: <1201> Forwarding the packet to router-ports
2024 Jan 23 igmp: SN: <1201> From vPC member link/NVE, dont send it on peer-link
2024 Jan 23 igmp: SN: <1201> Sending a v3 General-Query from switch-querier (mrt:10 sec) mvr disabled
2024 Jan 23 igmp: SN: <1201> ES_MODE = 0, from_mcec = 0, es_configured = 0, flood
2024 Jan 23 igmp: SN: <1201> Received a v3 General-Query on switch-querier (mrt 10 sec)
2024 Jan 23 igmp: SN: <1201> Updated querier query interval to 125 and randomness variable to 2
2024 Jan 23 igmp: SN: <1201> Received v3 General query from 100.64.0.255 on switch-querier
2024 Jan 23 igmp: SN: <1201> Process a valid IGMP packet, pkttype:v3report(34), iif:Po34
2024 Jan 23 igmp: SN: <1201> Processing v3 report with 1 group records, packet-size 16 from 100.64.0.8 on Po34
2024 Jan 23 igmp: SN: <1201> Record type: "mode-is-exclude" for group 224.0.0.251, sources count: 0
2024 Jan 23 igmp: SN: <1201> Received v3 report: group 224.0.0.251 from 100.64.0.8 on Po34
2024 Jan 23 igmp: SN: <1201> Updated oif Po34 for (*, 224.0.0.251) entry
2024 Jan 23 igmp: SN: <1201> Processing reportfrom_cfs: 0, on_internal_mcec: 0, im_is_iod_valid: 1im_is_if_up: 1 im_id_ifindex_veth = 0, rc = 0, ifindex = Po34
2024 Jan 23 igmp: SN: <1201> Forwarding the packet to router-ports
2024 Jan 23 igmp: SN: <1201> From vPC member link/NVE, dont send it on peer-link
2024 Jan 23 igmp: SN: <1201> Process a valid IGMP packet, pkttype:v3report(34), iif:Po34