Switching

Hi all,my customer has a lot of WS-C2960XR-24PS-I  (15.0(2)EX4) 24 and 48 Port switches, some are in a stacks, others not. All have 2 Powersupplies.(each 640 Watt)Now he notice this message every 5 minutes, but not on all switches.Looking at the swit...

#show users Idle user will not end, tried clear line vty and disconnect ssh vty  and no go here is the output of the show process cpu  PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process 152 1332529 11639 114488 82.50% 81.34% 81.20% 1 SSH Proc...

Hello Dears, On the Cisco Catalyst 2960-XR models that support 10 Gigabit SFP+ modules (per exemplo: 2960XR-24TD-I), the 2 uplink SFP+ ports are dual speed, in other words, the ports support transmission rates at 1G/10G? Thank you! Regards, Allys...

Hello, We currently have a stack of 4 2960x series switches and we are expanding to the other side of our building. So we purchased another 2960 switch to put on the other end. I would like to copy the configuration from member 2 of the stack and pl...

I have a c1941 isr that restarts into rommon mode upon every restart.  Verified that the config register is set for 0x2102.  When it boots to rommon.  I've set the configuration register as 2102 in rommon mode(confreg 0x2102)then loaded the active(an...

Hi, Will the commands below prevent an end device like a computer or voip phone broadcasting unwanted ipv6 traffic to LAN? We don't run ipv6 in our network and had an issue before wherein one of our access switches was getting lots of ipv6 traffic fr...

Hello, I have two switches WS-C3750G-24TS and i had an interlink between them through a port channel containing both ports g1/0/23 and 24. Then all of a sudden when i noticed the interlink was status down and protocol down. I have shutdown and no shu...

Hello, I am trying to configure 5921 router to work with dlep simulator (https://sourceforge.net/projects/dleptools/). I have two routers 5921 and two dlep simulators on lan. Using dlep 1.0 version in router. I follow instructions from Software Confi...

Hi experts, in my understanding if I configure an MTU on an interface, incoming/outgoing packets that are bigger then MTU are discarded. This limit applies to both originated by router, terminating on router and routed traffic.  What I didn't underst...

Hi all, We have faced an issue with our Cisco Catalyst 3750 v2 switch. One of the switchport suddenly stopped accepting incoming traffic causing loss of network connectivity for downstream access switches. Following is the output we captured during t...

Hi Team,  Actually we upgrade our MPLS link from 6mbps to 45 mbps so we checked the link using ping command, when we given upto 1500 data size i can able to ping but morethan 1500 i can't able to ping. FYI here i enclosed the attachment Router#ping ...

I am trying to track down some bizarre traffic.  I see 6-7Mbps at about 5000 packets per second of traffic that netflow is just showing as 0.0.0.0 source and 0.0.0.0 distination with ports of 0000.  I just have the netflow applied to one vlan interfa...

Hi all,We have 8 stacks of 2960Xs, which we installed earlier this year.  For the past few months, we have been running into many issues with port security. It started with ports with IP phones. We originally used a port security max of 2 (one for ph...