Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Monday, February 2, 2026, through Friday, February 20, 2026. Our colleagues Amruta Navadagi, Anaya Kalawat, and Mohammad Mehtabuddin will be waiting to assist you...
Hi,This is quite basic, can some one please explain what the output below shows. Why do I see NULL in outgoing and incoming? Is there a problem here?sh ip mroute 239.48.181.10IP Multicast Routing TableFlags: D - Dense, S - Sparse, B - Bidir Group, s ...
Hi,I have one router C3925 which uses HWIC-4ESW module card to connect to two Gigabit port on 2960 SWs. The Router can ping two SWs, but no neighbor when issue "show cdp" command. However, 2 SW can see the router in "show cdp neighbor" command.The Ro...
Which uplink port on a WS-SUP720-3B card is the interchangeable SFP/RJ-45? Gig x/1 or Gig x/2? I am requiring an RJ-45 uplink installed on a 6509-E to a C3925 vendor router? Thanks in advance.
Hi,Can i connect 2 x 2960 stacks ( 4 switches in each stack) together ? Reason why i am asking is that we are looking replace 3750 with 2960SF and some of the current 3750's have 8 switches connected in a stack. So i will be replacing them with ...
HiI'm doing a project for 1st year university studies and would appreciate some input. I have to design a hypothetical network for a business running 300 PCs, the business is spread across 2 buildings both of 3 stories (levels). My hypothetical desig...
Hi All,We are planing replace 6509 to 4900M+Nexus5548 due to A/C and Power issue. We have two 6509s and plan to use two 4900M (20xRJ45 and 8x10G modules) + two Nexus5548 to replace it. (4900M Layer 3 and do HSRP, 5548 for 1G and 10G layer 2 connect...
I have a Nexus 2k using the N2200-PDC-400W power supply. Can someone tell me what size fuse should I use with this power supply?
Hello All I have loaded new image on 4506 cisco switch which currently is running on cat4500-ipbase-mz.122-31.SGA.bin.. New image will be cat4500-ipbasek9-mz.122-54.SG1.binOn boot flash I can see both images ebrswc01#sh bootflash-#- ED ----type---- -...
Does anyone know how many ACL/TCAM resources are supported by WS-X6K-SUP2-2GE?Regards,
I have 2 3560's that are distrobution layer devices that aggregate serveral access layer switches in one of our offices. I want these switches to simply pass the ingress tagged QoS packets on out to our core network unchanged and retaining the origin...
Hello,I have a cisco 7304, it looks like that only can work with 2bytes ASN. I looked for newest software to update it as far as it is possible, and it didn't work.I need to use 4bytes ASN. How can I get it? Anyone knows any configuration that allows...
Hi We work with two Cisco Nexus 5548 with ACLs configured on VLANs.Software Version is: 5.1(3)N2(1)The ACLs are working fine. But our problem is, that in the logs on the switch, on Server or console/monitor does not appear.when i configure things lik...
I am trying to figure out how to do a track of reachability for an ip and then if it fails switch the port to a different port.For example, i have a vlan interface and two layer two switchports with separate paths to a different location, one on gig1...
I've got a WS2958G L2 Cisco switch without CatOS and the switch boots to ROMmon mode. I've tried to educate myself as to how to upgrade it but it seems that I'm stuck at this point. I can see printout on hyper terminal but I'm unable to communicate ...
Hi,I have attached my topology for practicing STP. The issue that i encountered is with switch3. Switch3 is connected to Switch2 via Fa0/3 port (Path cost =19). Switch 2 is connected to Switch1(Root switch) via Fa0/1 (Path cost=19).As per STP the roo...
