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Hello - I'm very new to the Nexus OS and I am trying to setup multicast. I found out that you no longer need to enable multicast by doing "ip multicast-routing" that you would just need to do "feature pim". Now I'm trying to enable bidir, in CatOS th...

jcerero77 by Beginner
  • 5 replies
  • 0 Helpful votes

I need to find compatible 1Gb Copper SFPs for the 2960S-48FPD-L.   According to this - https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/hardware/installation/guide_stack/2960SHIG/HIGOVERV.html#wp1250224   The only SFPs supported for th...

I am running out of IP address on our internal LAN ( I cannot simply change the net mask to /23 since we are already using in the DMZ. So, to be able to get the extra IPs needed, I've created a superscope on the Windows...

daverutz58 by Beginner
  • 4 replies
  • 0 Helpful votes

hi all,would like to know if auto MDIX are on by default on newer switch. i'm sometimes kinda lazy to check the correct UTP cables and all our cables are usually straight ones. thanks!Switch(config-if)#mdix ?  auto  Enable automatic MDI crossover det...

Hi,   I have a 2901 router with a few IPsecs.  I have two servers ( and  All customers use these server IPs.  One customer cannot, however, so if from or, and destination or destination 192.168...

Hello everyone!   I work for an ISP and on access layer we use ring topology. We use rstp for l2 redundancy on access layer and REP(resilient ethernet protocol) on core/aggregation layers. To tunnel BPDU between edge switches in the access ring we us...


Hi all,   we have a WS-C2960G-48TC-L which often sends SNMP traps with high memory utilization (about 93%). When looking on the switch it looks ok to me: njnb-g3#sh mem                           Head      Total(b)         Used(b)       Free(b)    Low...

SimoneK by Beginner
  • 4 replies
  • 0 Helpful votes

Hi   Can you suggest  a Cisco switch and a router that does not  make noise when in operation. At work we use the 2960 catalyst and i wish to buy a similar one for my labs. Any suggestions  for the router. Pricewise I would like the older switch/rout...

thulanig1 by Beginner
  • 3 replies
  • 0 Helpful votes

Hi,   I am experiencing an issue with PoE on Cat WS-C3850-48U switch interfaces. It was working good before, after few days when i connect an IP phone it is not powering on. I able to see that few ports on the same switch are functioning good and Acc...