1000BaseT SFPs stop working in WS-X6724-SFP line card
We have recently observed a strange problem with Copper 1000BaseT SFPs in a WS-X6724-SFP line card within a 7606 chassis. All copper SFPs stopped working but and ports did not show connected (and the status LEDs were not lit) but the opposite end of the link saw the connection as 'up' (these we just point-to-point GigE links between GigE SFPs and GigE ports on a WS-X6748-GE-TX line card in another chassis. Fibre SFPs still remained operational. The only change made was the insertion of some 10GE optics (-SR and -LR) into two 8-port 10GE line cards in the 7606 chassis which shouldn't have had any effect. The 7606 is running 12.2(33)SRD4 Advanced IP Services. The WS-X6724-SFP has not be reset as we are awaiting a suitable maintenance window, and would prefer not to reset it if there's an alternative solution. Has anything similar been seen before?
Re: 1000BaseT SFPs stop working in WS-X6724-SFP line card
We upgraded the PSUs ahead of installing the additional cards, and there is sufficient power available now.
I too found that bug (thanks leoaohoo), but the module has been working fine with SRD4 until the 10G optics were installed in the 7606.
As a workaround, we installed a 48-port GE-TX card and move the ports using copper SFPs to that which proved that it was something to do with the copper SFPs in the WS-X6724-SFP line card. What is really odd is it only appears to affect the copper SFPs; the SX/LX GigE SFPs are still working.
[toc:faq]The ProblemOn traditional switches whenever we have a trunk
interface we use the VLAN tag to demultiplex the VLANs. The switch needs
to determine which MAC Address table to look in for a forwarding
decision. To do this we require the switch to do...
[toc:faq]Introduction:Netdr is a tool available on a RSP720, Sup720 or
Sup32 that allows one to capture packets on the RP or SP inband. The
netdr command can be used to capture both Tx and Rx packets in the
software switching path. This is not a substitut...
IntroductionOSPF, being a link-state protocol, allows for every router
in the network to know of every link and OSPF speaker in the entire
network. From this picture each router independently runs the Shortest
Path First (SPF) algorithm to determine the b...