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...
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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...
Hi Expert, I encountered a case under Cisco C9500 high Performance model. my client connect and get the IP address, gateway point to C9500. But not reachable. Show ARP in C9500, the ARP entry is correct.After the action "clear ip arp x.x.x.x" in C950...
Hi,I am trying to connect to a Cisco [Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.4(3)M3] switch via ansible/python. But I am facing issue because we have enabled a menu when we connect to vty.Is there any working sample some...
Hi Team,Can some once share the IOS upgrade procedure of Cisco 9300 stack switch.
Good evening,I have 2-9200Ls stacked together in IDF1 closet and 2-9200Ls stacked together in IDF2 closet. I recently had something happen at the same time last week and I lost 140 ports for approx. 5 minutes. My cameras on the active and standby sw...
Sorry if this is a newbie question.I have set up a lab in EVE-NG that has 3 vlans that have been configured using VTP. I connected 2 routers via router on a stick to my core switches so that I can have inter-vlan routing. The lab consists of 2 core s...
Hello experts, I have been hitting my head to the wall all day reading and trying to understand the purpose of a hybrid port, while I do have a clear understanding of both access and trunk ports. If my understanding is correct, hybrid ports are ident...
