Switching

I am having trouble getting VLANs setup between SG200 and 2960s switches. I have several other switches (different manufactures) that are working just fine in the same configuration. The topology is: Router -> 2960 -> SG200. The router has interfa...

I am having a problem similar to that discussed in this post: https://supportforums.cisco.com/discussion/12145641/cisco-3825-router-and-nme-16es-1g-p Here is what I wanted to do: Have the two native gig ports, plus the one that is on the NME-16ES-1...

Hi everyone, I'm having some difficulty understanding QoS on Sup2T.  In much of the documentation, it is stated that Sup2T support MCQ style QoS configurations (using class-map and policy-map) vs older mls configs. On a chassis with the following c...

Hi, I'm was in the middle of configuring two Cisco nexus 3172PQ switches when for one of them the password in the configuration file I wrote did not match what I expected as I had simply copied the config off another nexus this time a 7k and adapted ...

Hi all, I was wondering if anyone can answer me how much it will cost to run a basic ccna home lab i.e. 2 routers and 2 switches? I know it depends on the uptime of each device but I also want to understand everybody's experiences with this. Which r...

Hi, According to description of RFC2131,  if host is in INIT-REBOOT status, it will send DHCP Request to ask DHCP Server if it can reuse previous IP. After sending DHCP Request, the host is in "REBOOTING" status. If the host receives DHCPACK that des...

Dear, I have suspect about eFSU on cisco 6800 using Quad-Supervisor (SUP-6T) but I'm not sure is support. By information below link I found "Quad-supervisor SSO (VS4O) supports eFSU upgrades. You can upgrade or downgrade your VSS system using ISSU." ...

A "show ip device tracking all" shows an IP 0.0.248.22 and a MAC fe80.0000.0000.  Any idea's what that might be or where it may have come from. See below:

Dear Expert,Kindly i have a project that needs 14 switches with 8 PoE ports + 2 SFP up-links and all are interconnected to the main control room by SM Fiber cable. so my question is what's your recommendation about 14 switches and which core switch i...

Dear All,  I would like to enable FNF on a 4500X-16 switches in VSS mode. I followed the guide from Cisco , but nothing is send to my collector (Prime 3.0)  Context :  Cisco 4500X-16 in VSS, IP Base license, IOS-XE 03.07.02.E  , remote site  Collect...

Hi AllCan someone please help in this issue?I have a serviceable and operational SFP and unplugged it from a 7206 vxr and then installed it in CISCO 3560 SWITCH but the switch gives this error: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port G...

What is the meaning of start time in show ip Ospf output R1#sh ip ospf 2 Routing Process "ospf 2" with ID 10.55.0.1 Start time: 00:01:50.424, Time elapsed: 3y18w 12:03 what is the meaning of Start time: 00:01:50.424,