Communications Support Forums

Earlier this week, colleagues & I replaced a MTR3000 with a new SLR8000. For some reason we had issues connecting the SLR to the LAN - the port wouldn't come up even though we've tested it using a laptop on both ends (laptop to switch, laptop to SLR). We've determined that it doesn't like Auto-negotiate so we forced it at 100Mbps Full Duplex, which in theory resolved the issue. The IPSC network was working fine for a while.

Fast forward to yesterday evening, the hardware link flapped 5 times according to the switch's log (physical port down, physical port up, DHCP request, DHCP assign). The repeater was unreachable by ping even though the port was up. Before anyone asks, the repeater has a static IP address in the DHCP server, and yes, we replaced the cabling.

I had to shut/no shut the port for it to work again. I didn't have time to wireshark it but I'm assuming the IP stack was dead or in a zombie state.

Has anyone seen such behaviour on SLRs? I've also heard something about a SLR5700 on another site that kept locking up and would obviously lose Ethernet connectivity as well (on a completely different site & network config). I believe the two issues are unrelated but I'm still thinking we might be beta-testing the SLR series IP connectivity.