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First time poster!    Anyway, I've acquired a Catalyst 3550 for my practice lab. I have been able to log in via rollover cable. Now I have connected another switch (via RJ45) from my setup into this new switch, but it doesn't come up. I've ran no shu...

OsBrain by Level 1
  • 1831 Views
  • 13 replies
  • 0 Helpful votes

Dear all,   I ran into a problem where i cant ping my two interconnected switches. i have configured LACP between them, they can see each other using sh cdp neighbours but cant ping each other. Although if i configure normal trunking between them it ...

M Talha by Level 1
  • 885 Views
  • 7 replies
  • 0 Helpful votes

I have an old Cisco 3550 I am using for an educational project. I want to access it via SSH, but the old firmware I am using " Version 12.1(19)EA1c" only has Telnet access. Through research online, I can see that a later version such as "12.2-25.SEE4...

BIOS by Level 1
  • 624 Views
  • 1 replies
  • 0 Helpful votes

Hi peeps,   I work as a Senior Network Engineer at a metro network, and unfortunately we have a bunch of WS-X4640-CSFP-E cards in 4506E chassies with CSFP optics hence 4:1 overbooking, and to add to the horrible problem its actually on distribution l...

jorel83 by Level 1
  • 1117 Views
  • 5 replies
  • 0 Helpful votes

Hello!!   I have problems to factory reset a 2960CX switch. I need to know the procedure to reset the configuration with the mode button.   Thank you everyone!!

Greetings, We are currently running a Cisco WS-C4510R Switch and recently decided to apply port-security to all the user ports in our infrastructure. Two mornings in a row, a user's computer port was disabled. It showed a violation in the show port-s...

fodmidoid by Level 1
  • 3374 Views
  • 11 replies
  • 0 Helpful votes

I am working with a client that has two Nexus 9K switches.  I'm attempting to set up an ERSPAN from switch B to switch A.   I'm running into a problem where I can't configure the erspan-destination on switch A.   To my knowledge, this is done first b...

teward by Level 1
  • 527 Views
  • 0 replies
  • 0 Helpful votes

Hey folks,I'm working on some remotely located 5k and 2k's...i have discovered that the image on the 2k's is newer than the image on the 5k...So, during the implementation of the configurations for the 2k's, it fails, trying to download the image (2k...

Hi Guys  We have the following topology (screenshot below) 2 x Nexus 3k switches connected with vPC link towards Palo Alto firewall. We have 2 x VLANs 100 and 200. I'm routing all the traffic from the VLANs via PBR to the Palo Alto firewall by tracki...

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Chris_78 by Level 1
  • 1187 Views
  • 2 replies
  • 0 Helpful votes

Good day all,    I have a cisco 2960 X with two vlans, vlan 1 and vlan 2. I have an ADSL router on port 23 (router ip 192.168.1.254) interface Vlan1 ip address 192.168.1.251 255.255.255.0 ip helper-address 192.168.1.1 interface Vlan2 ip address 192.1...

Nqabeni by Level 1
  • 1265 Views
  • 4 replies
  • 0 Helpful votes

I'm trying to configure this very old switch for dual VLAN ports Data/Voice an here is my config:    no logging event link-status switchport access vlan 200 switchport trunk encapsulation dot1q switchport mode trunk switchport voice vlan 800 spanning...

ALIAOF_ by Level 6
  • 977 Views
  • 9 replies
  • 0 Helpful votes

Que tal amigos escribo en esta comunidad para ver si alguien me puede brindar información sobre un smart switch SG200-50, quisiera saber porque el led de system parpadea sin parar y esta en color verde pero no responden los 50 puertos tampoco me deja...