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Questions tagged [cisco-catalyst]

A brand of network switches by Cisco Systems.

113 questions
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How Can I Have 1 Device Ignore Cisco Default Route?

I have a two building infrastructure that I need a few access point devices in Building 2 talk to the default gateway in Building 1. Each building has its own firewall. Each building is connected over fiber to Cisco L3 Switches Building 1 -…
Mike
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Why do I have to specify the subnet broadcast address?

When configuring the management IP address of managed Cisco switches, I have to specify the broadcast address of the management network next to their address AND their netmask. Of course this is always the last address of the subnet. Why do I have…
bot47
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Cisco switchport is solid amber

I have a port on my switch that is showing a solid amber light. I have tried to shutdown this port, but it still shows the solid amber. This switch is production critical so, I cannot reboot it until there is an appropriate scheduled window to do…
DChi Shaggy
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FastCGI: manager (pid YYYYY): server (pid XXXX) exited with status 13

FastCGI: manager (pid 6776): server (pid 20254) exited with status 13 FastCGI: manager (pid 6776): server (pid 18918) started FastCGI: server (pid 18918): initialized I am getting above mentioned error on my catalyst based application running under…
Hardik Joshi
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Cisco 1000BaseT SFP modules in a 3750 overheating

I have a 3750 responsible for switching in my DMZ. Every once in a while one of the gigabit links will go down although ios and the server attached to it report the link is up (activity lights, etc). My solution is to remove the 1000BaseT SFP…
h3rrmiller
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Trouble Switching From non-VLAN to VLAN-Enabled Network with Sophos Gateway

Nasty conundrum here. Some background: I have a Sophos UTM ASG220 serving as gateway device for a number of networks, with a Cisco 2960 network switch, and a raft of Red Hat 6.6 servers running KVM and hosting multiple guests, with the guests being…
Unpossible
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voice vs data device authentication

When a device is plugged into a switch (let's say, a Cisco Catalyst switch) how does a switch know whether the device is a VoIP one - and subject to being placed into the voice VLAN - or some other kind, i.e., a data device, and this subject to…
Boris Epstein
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CISCO 2960X Access Switch Issue Random Limited Connectivity Issue

I have a CISCO 2960X Access switch which is configured in 8 Stack. IOS Version 15.0.2EX4 Software Image: C2960X-UniversalK9-M The System is connected VIA the CISCO IP Phone (7942G)and and then terminated to the Switch (Including the Patch…
Samuel Fernandes
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Polycom VOIP phone seems to mask the secondary device's MAC address from a Cisco switch

When I have a Polycom VOIP phone plugged into a Cisco switch and a laptop plugged into the Polycom phone I get the following. 1) The phone goes into the voice VLAN as expected. 2) The laptop goes into the data VLAN as expected. 3) When I run show…
Boris Epstein
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Switch troubles - Cisco Catalyst 2950T 24

At my new workplace, thanks to the old system administrator, we have an unused Cisco Catalyst 2950T 24 (two gigabit ports, 24 100Mbit ports). It was used in a quite weird setup (the place has two internet connections - one governmental supplied one,…
fonix232
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Connect to cisco switch using shell script

I would like to run a daily script the cleans my switch arp. I enabled SSH on my switch. how do I connect to the switch using a simple shell script? I'm not sure how to provide the SSH password and the enable password. Thanks!! Dotan.
edotan
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Cisco MOTD from external source

Is it possible to have the MOTD Banner set from an external source while maintaining a hard coded value (if present)? Possibly like a TFTP server? Only way I have ever seen this done is via it being explicitly set through the command line. EDIT:…
Jared
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Programmatically interfacing with Managed switches (Cisco 3750)?

I work at an organisation that has a few thousand computers and around 100 switches. To help with the stock take for the computers I would like to programmatically access the managed switches to find what plugs are being used and if it is possible…
user802599
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Cisco IOS debug commands and packet monitoring

There is a long list of debug commands. Are there any debug (or other IOS) commands which can capture detailed packet or frame (layer 2, 3) data across an interface? I know we have show-mac-address-table and show arp, but this doesn't show things…
T. Webster
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Jumbo Frame configuration & VMware

I am hoping one of you can help clear up some of my confusion on this matter. We have 2 new catalyst 3750 switches to support our VM hosts and SAN arrays. The SAN arrays utilize jumbo frames with an MTU of 9000. In the switch config- we specified…
Mike P
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