Switching

Hi Everyone, I'm setting up a few new SG350 switches here at work, and some of the commands I've encountered thus far are different from what I've already learned.  Here are some examples:   SW1(config)#line ? console       Console terminal line s...

Hello,  Have you ever come across that 4500X is not passing some vlans on some ports ( Tengig)? If you have any experience on this appreciate if you could share with me. 

Hi Everyone, This is a rather quick question in regards to what impact equipment with varying LAN connection speeds affects the entire network as a whole. Over the past year I have been systematically swapping out old 10/100 switches for their GB cou...

Hi Cisco engineers, Am aware that you can't have 2 DHCP's on network for varied reasons including allocating of wrong IP addresses being picked up, but when you have data and voice vlan, and the 2 DHCP ranges associated to this,how can you "null" 1 d...

I've tried to upgrade our 4503 Sup8E VSS Switch via ISSU described here: http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/15-1-2/XE_340/configuration/guide/config/vss.html I've tried the one step and the four step method without success...

Hi Team, We have the Switch WS-C4510R+E & WS-X45-SUP8-E being installed to one of our Customer and reported the issue of active supervisor got failed so the switchover happened for the chassis. Now we need to know the reason behind this supervisor s...

Hi, I not sure about the best way to setup STP in my environment. I have attached a snapshot of my setup. My primary site has a pair of 3548 setup with VPC.On the DR site i have one 3548. Sites connected with 10G and one old multimode 1G as backup.Al...

Hello, I need to upgrade my CISCO switch IOS but I have no Available space in the flash for the 2 IOS. can I delete the available IOS and in the same session I downloaded the new IOS or the switch will crach my cisco switch is 3560-48PS

 I will be upgrading a pair of Cisco 6807XL's running s2t54-adventerprisek9-mz.SPA.152-1.SY1a.bin ( which has been deferred by Cisco) to the latest stable code ( 15.1.2-SY9) for the Catalyst 6500 Sup 2T.  Both 6807's are in a VSS configuration with m...

Hello, i have a weird problem. We have a WS-C3560G-24TS-S and i can't log in with a certain username. My cfg is something like this: username admin privilege 15 secret 5 Whatever123username user1 privilege 7 secret 5 cisco123 I can login with "adm...

I go to conf t, then make some change, then I type "do wr " and do verify /md5 nvram:startup-config, the MD5 value is ******ad3, now I type end and then followed by wr, I get another MD5 value is ******s32, but my two configuration is the same, why w...

Hi, I'm searching for upgrade steps for Cisco 6840 Switch, i have searched everywhere but there isn't one available online? i'm facing an issue with the current IOS 15.2(2)SY2 and as per Cisco bug track (CSCur96442), it iis recommended to upgrade the...