Hi Experts,Any thought of my this problem?We have stacked 3650 access switches connected to a VSS via a port-channels. For historical reasons we have vlan 1000 as the native vlan on these uplinks. When we ad new vlan's to the access switch it seems t...
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PC A has a 1500 byte MTU size and 1460 byte MSS size. PC A needs to send 9000 byte of data to PC B. PC B has a 1400 byte MTU(I am not 100%, but I heard MTU size can be changed) size and obviously 1360 byte MSS size. PC A will segment 9000 byte of dat...
Hello,I have a bizarre issue with 2960-X models (WS-C2960X-48FPS-L). After upgrading to any release after 152-4.E8.bin certain devices drop off the network periodically. This can range from every 10 minutes to around 4 times a day. The devices most a...
Do eBGP Neighbors need to be in the same subnet?
Hello i want to upgrade ME3800 to me380x-universalk9-tar.156-2.SP8 so with this command : archive download-sw /overwrite tftp://10.5.11.145/me380x-universalk9-tar.156-2.SP8 ===> 10.5.11.145 : @ip de platform cisco prime it show me error message ...
Hi all,I have a problem connecting my access point to Cisco switch with multiple SSID. I have two SSID with VLAN 10 and 20. On my router, I have three dhcp pool MGMT, VLAN10 and VLAN20. A switch is connected to router by Trunk mode and connected to a...
Hello. I had a switch completely die on me. This is a first for me. It's a 24 port 3750. I only have 48 port 3750's around here that I can replace it with. I tried copying the config directly to the new switch and I'm using the same network module th...
Just purchased a used Reset Catalyst Express 520 from eBay. Vendor did not reset login back to default and doesn't know the current login credentials. Seems to be running fine. Boots up. I can get an ip address from it and can ping the device. When i...
Hello Everyone,We have a 14 offfice MPLS network. All offices have Cisco 3750s running OSPF which replicate route tables via our providers BGP peers. I am introducing a new network in our SF office which is not directly connected so in SF we have ...
Resolved! SNMP trap
Hi, I am unable to remove the following commands from my Cisco 3750 running configuration. The best i can do is to run "no snmp-server", but that would disable all my other snmp queries to the switch. The strange thing is when I perform "snmp-server ...
We have two routers (Nexus 9k), router A and router B. Currently, we have one monitoring node connected to router A, and we're running an ERSPAN session from router B to router A to copy traffic of specific vlans (let's say vlan 100). Then router A s...
I have a 4500x at the core. My dhcp server is connected here and then I have client 2960x switches. I am seeing "bad address" in a few scopes in my DHCP server. Snooping is on and I am wondering does "trust need to be setup end to end? From the p...
Issue in Packet tracer: DHCP failed. APIPA is being usedI am following a practical, so only these 3 devices are used in it.A server, a cloud (internet) and a PC. They're connected with copper straight-through cable.When I tried to configure the IP in...
Resolved! Restricted user roles in Cisco DCNM
Hi Expert, I am new to Cisco DCNM and would like to know if it is possible to restrict a user from accessing the template library so he can not modify the templates such VRFs etc. Regards
Resolved! c2960x keeps rebooting
Hello Team,I don't know what the exact root cause might be, one of my access switches(c2960x v15.2(4)E8) keeps restarting nonstop. Error: ASIC/PHY POST failed. Cannot continue. Please assistSee Switch full output below;Loading "flash:/c2960x-univers...
