The cisco-catalyst tag has no wiki summary.
7
votes
1answer
192 views
High latency/drops between Cisco switches in two locations. How to troubleshoot?
I'm receiving user complaints about poor network application performance between two parts of a large warehouse facility. The software is a curses-based terminal application running on a Linux server. ...
0
votes
3answers
51 views
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 ...
0
votes
1answer
38 views
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 ...
0
votes
1answer
52 views
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 ...
0
votes
2answers
75 views
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 ...
0
votes
1answer
65 views
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 ...
1
vote
1answer
141 views
Cisco 3750 switch wont transmit radius request to server
We have a radius server running on our lan and i am able to authenticate against it through direct link to the server.
However when we want our clients to connect through our switch (cisco 3750 ...
0
votes
1answer
100 views
Find client IP connected to VLAN from Cisco Catalyst 3600 by SNMP
I would like to get using of course SNMP, list of client IPs connected to VLAN in Cisco Catalyst 3600.
So far, I have pseudo-algorithm made by me which obtains those IP addresses, but I am not sure ...
0
votes
0answers
82 views
Cisco WS-C4948 vlan1 management from outside
I'm trying to get a catalyst going for remote management using cisco network assistant.
I've basically, enabled telnet;
enable
conf t
line vty 0 15
password {password}
login
exit
gave it an IP
...
0
votes
2answers
226 views
XenServer 6.0.2 and Cisco 3550 vlan configuration
I am running a couple of xenserver 6.0.2 hosts with multiple vm's on them. All the xen hosts have 4 physical network ports connecting to the cisco. Each port is untagged in xen but is tagged to a vlan ...
0
votes
1answer
114 views
Single Cisco ASA, Replacing single 2960 switch with 2 x 2960G's and VLANS
I have a Cisco ASA5510, IOS 7.2.5
Presently it is connected to a single Cisco 2960 with VLAN's 10,11,12, configured as subinterfaces on E0/1, which are also the internal default gateways for the ...
1
vote
2answers
116 views
Cisco IOS switch dropping legit DHCP requests
We have Cisco Catalyst 4507R running IOS v12.2 that appears to be dropping valid DHCP requests. Checking for the requests using tcpdump on the DHCP server and on a machine connected to a monitoring ...
5
votes
2answers
577 views
HP to Cisco spanning tree root flapping
Per a recent question I recently configured both my HP (2x 2900) and Cisco (1x 3750) hardware to use MSTP for interoperability. I thought this was functional until I applied the change to the third ...
2
votes
2answers
478 views
Configure spanning tree from HP to Cisco hardware
I have three switches I'd like to configure in a loop - a Cisco stack (3750s) and two HP 2900 series. Each is connected to the next with a 10 gig backplane of one form or another.
How do I configure ...
0
votes
1answer
88 views
Cisco redundancy modes
I am using a Cisco 6500 series with an SSO redundancy configuration. The show redundancy output is as follows:
Hardware Mode = Duplex
Configured Redundancy Mode = sso
Operating ...
0
votes
2answers
620 views
How do I connect to and factory reset a Catalyst 3560 Switch? [closed]
My company just bought another company. In their server room they had some older hardware, which I would like to repurpose. One of these is a Cisco Switch: C3560G-48TS-S.
I found some instructions ...
0
votes
0answers
748 views
Trunking between Cisco 1800 router and Cisco Catalyst 2960 switch
I would like to establish trunk between Cisco router 1812 and Catalyst 2960 switch. What I would like to have is that router gets ip address on his fe0 interface and on fe2 provides trunk with 3 VLANs ...
9
votes
2answers
1k views
Is my Cisco switch port bad?
I've been chasing a packet-loss and network stability issue for a handful of end-users on an internal network for the past few days... These issues surfaced last week, however the location was struck ...
2
votes
2answers
232 views
I can't display running-config on cisco catalyst at privilege 15
Note: All password have been replaced or redacted.
I'm trying to create a (rancid repo) account that can use the command "show run" without enabling and using a second password.
Right now, I add ...
3
votes
1answer
454 views
How do I find out which physical port my ethersvi MAC address corresponds to on a Cisco switch?
I'm doing a layer2 network map (my first) and this is the first virtual mac I've encountered.
From the mac address table of switch1, I have
VLAN 1 6416.8d98.52c0 DYNAMIC Te0/1
and on the ...
2
votes
2answers
368 views
How do I draw a layer 2 (link layer) network map containing Cisco and *NIX boxes?
I've been tasked with drawing a layer 2 network map of our very small datacenter network.
There is one 1841 cisco router, two 3560 cisco catalyst switches and 4 solaris sunfire T-1000 boxes.
I have ...
0
votes
2answers
568 views
How do I change my password on a Cisco Catalyst 2960 switch?
I was given a username and a temporary password on a catalyst switch and I can't figure out how to change my password...
Upon googling, I found this but when I raise my privileges to 15 by typing ...
15
votes
2answers
1k views
What is this item that came with my Cisco switch?
We just received a new Cisco Catalyst 2960, and in the box came an item we've never seen before. Interestingly enough, the documentation shows an image of the object, but it is not listed anywhere ...
1
vote
3answers
3k views
Configure cisco switch remotely without console access
Since Cisco in their newer firmwares disabled access to the web interface before password is set on the switch I need an alternative way of configuring switches remotely.
I read up on the Cisco Smart ...
1
vote
1answer
613 views
Why is my Nexus 5548UP not adding ARP entries for the trunk to a 2960S?
I have a Nexus 5548UP trunked to a Catalyst 2960S. I have verified that spanning tree is working. I explicitly made the 2960S the root bridge for all VLANs as a temporary measure since it is trunked ...
1
vote
1answer
222 views
Catalyst 3560G SPAN session not mirroring IGMP packets
I am developing a device which acts as a multicast host, and want to observe it as it responds to IGMP Queries.
My Catalyst 3560G is set up as follows (full config below): Port 0/1 is a TFTP server ...
0
votes
2answers
331 views
Teaming on Cisco Catalyst switch
Hopefully an easy one for someone...
If I'm setting up either an MPIO or Team/bond on a Windows server, does a channel group need setting up on the Cisco Catalyst switches that they're connected to? ...
0
votes
1answer
173 views
Can mod_fcgid maintain a hard-minimum number of available appserver processes?
...and if so, how?
I'm using Apache2 + mod_fcgid to serve a perl Catalyst application, on a box that I own, and I'd like for mod_fcgid to maintain a minimum number of spun-up processes ready to go. ...
1
vote
2answers
2k views
Vlan Management Policy Server ( VMPS) Configuration and Management
I am trying to design a topology in which I need to use VMPS and unfortunately the resources are rather few on the internet.
Based on this Configuration document
VMPS
I have created a sample ...
0
votes
0answers
611 views
Cisco Catalyst Express 500 DHCP setup problems
I wanted to change configuration of Catalyst Express 500 switch, from fixed IP to static DHCP. But uppon restart, CE500 did not receive IP, neither has requested it. When I look at traffic with ...
0
votes
1answer
183 views
Can't ping/SSH into brand new Cisco Cat4510 switches
I have copied configs and IOS from known good/in place switches (making obvious changes to VLAN IP's, ports, etc), but cannot ping VLAN1 on the new switch from my laptop though I can from another ...
1
vote
1answer
772 views
Etherchannel between Cisco Catalyst 3548 and Linux box
We have a Cisco 3548XL switch.
Fa0/1 and Fa0/2 are configured with the:
port group 1
option.
This gives me this:
switch#show etherchannel summary
Flags: d - default D - ...
0
votes
1answer
139 views
Multiple ACL on Cisco Catalyst with QoS classes - behaviour
I would like to limit the traffic to 2 Mbit for several IP addresses.
With the following configuration, will each IP be limited to 2 Mbit or is it all IP addresses combined?
Configuration:
...
1
vote
1answer
181 views
Cisco BPDUGUARD and BDPUFILTER
What happen if I have both ENABLED spanning-tree BPDUFILTER and BPBDUGUARD on a specific port?
0
votes
1answer
291 views
Cisco Catalyst 3550, ScreenOS, IOS Fundamentals, Juniper ssg5 NetScreen vlan
i have two vlans configured into a juniper netscreen (a screenOS device).
I have connected a catalyst to the nic i have configured the vlans on. I need an example configuration to shoot into the cisco ...
0
votes
1answer
197 views
Perl + Catalyst hosting only possible on a (pricey) VPS?
I'm about to set up a website with a Wiki and was looking at MojoMojo as a more user friendly alternative to MediaWiki.
The problem however is that it runs on Perl and Catalyst framework, for which ...
0
votes
1answer
448 views
CISCO: ARP Poisoning Countermeasures
How can I prevent the Cisco Catalysts 2950/2960/3550/3750 from being vulnerable to ARP Poisoning?
Can this be avoided with the ARP INSPECTION?
Thanks
0
votes
2answers
209 views
Cisco switch sending out excessive STP packets
I have a Catalyst 2900 that's sending out an STP packet about once ever 1-2 seconds. Is that excessive?
2
votes
2answers
203 views
Multiple catalyst switches
We're about to do a major office move, which will involve re-cabling everything in our premises. We're in two floors of a single office building, with 2-4 comms cabinets on each floor; each of these ...
1
vote
2answers
725 views
Management VLAN Cisco Catalyst
I have configured a couple of VLANs on a Cisco Catalyst switch with IOS, i will put all the ports that clients is connected to, into these VLANs. I want to configure the native VLAN [vlan 1] as ...
2
votes
2answers
1k views
Cisco router and switch configuration
I want to configure a Cisco 2600 series router to be DHCP server. To the ethernet port i want to connect a Cisco Catalyst 2900XL 24 ports switch, in this switch i want to connect a computer in port ...
5
votes
1answer
485 views
Setting spanning tree link “priorities” in Cisco switches
I've got a pair of C2960G-48 switches (running IOS 12.2(46)SE, if it makes a difference) with redundant trunks in place. On these switches there are a bunch of VLANs that carry quite heavy traffic at ...
1
vote
4answers
640 views
CISCO 3550 HW Crash
were facing 5 Cisco CAT 3550 crashes now, we send out configuration to 3rd party company CISCO Gold partner and did environment power checking with the server site, no clue as yet what would be the ...
