Hi All,
Was hoping someone can provide some advice with regards to troubleshooting a
particularly painful multicast issue.
The set up isnt particularly complex:
Servers <>Switch<>Tunnel router (RP) >>>>> GRE over WAN >>>> Tunnel router
<>Switch<>Servers
The tunnel router interfaces have been configured with the TCP mss adjust mtu
command and set to 1400.
Everythings been up and working for a year but recently weve been experiencing
issues with mcast and can see dropped packets when using a sniffer on the
server. The suspicion lies with the WAN provider who has recently made changes
but extended pings/sweeps over the WAN shows no drops.
Has anyone any ideas or experience on how to troubleshoot packet loss over GRE
for multicast?
Regards, David
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