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Cisco Community - Lab Series

Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

Resolved! Lose Configs when stacking switches

Hi, I have 2 cisco 3750 switches not stacked, each with its own config but I would like to stack them.  If I shut them off, put in the cables together and boot up, would I lose the configs of both switches and have to reconfigure the switches?  TIA.

pugster73 by • Level 1
  • 1525 Views
  • 3 replies
  • 0 Helpful votes

proxy script

one of my user is able toconnect to LAN, but not able to access internet, he alerady use proxy script in his browser, last month he can access internet, any steps need to do trouble shooting?

Mary by • Level 1
  • 445 Views
  • 1 replies
  • 0 Helpful votes

stack and vss

in stack, we can combine three or switches into one logical switch, but using vss we can only combine two switches, so if both two switches fail, then it cause problem, while in stack, if we can three switches, two fail but remaining one still work, ...

Mary by • Level 1
  • 651 Views
  • 2 replies
  • 0 Helpful votes

bgp network

in bgp session, my int g0/0/3 ip address 192.168.1.2/24,  i enter  command network 192.168.1.0 255.255.255.0 under router bgp 65111, then i show ip route 192.168.1.0,but it says subnet not in table. do i need to clear ip bgp * so, or there is other ...

Mary by • Level 1
  • 695 Views
  • 5 replies
  • 0 Helpful votes

VRF Route Leak + NAT

Hi, I am trying to use internet from my HUB CSR that is running VRF for each Spoke VPN, but i am unable to do so, although i am able to advertise default route from CSR back to spoke VPN. Here is my topology Spoke1(10.55.0.0/16)---->IPSEC/BGP Tunne...

All VSS link failed issue

Hi All, We have two Core in VSS connection (one active and one standby). And each floor switch is connected to these two Core using ether-channel. My problem is: When some of the reason that all VSS link on the two Core had disconnected (Two Core b...

osw200051 by • Level 1
  • 553 Views
  • 2 replies
  • 0 Helpful votes

ping to internet

Hi, I know my concept is wrong, so that is why  i am here to get guidance from experts :) When i ping internet with 1500 bytes payload  with DF bit set, I know i am hitting 1528 which is more than 1500 bytes and ping doesnt work. But i thought when ...

instant CPU rise and fall

Hi exeprts, I have one issue with my network switches, Switch CPU instant goes to high and instantly fall, I shared the log below. Model : WS-C2960-24PC-L IOS :  c2960-lanbasek9-mz.122-55.SE9 Log: Mar 15 22:10:27.134 IST: %SYS-1-CPURISINGTHRESHOLD...

Resolved! CISCO ROUTER 2900 AND 1900

good day, please anytime I remove cable from one of the ports configured as WANLINK, when ever I plugged it back it will take approximately 10 minutes before it will respond (before passing internet to the local network). what can I do to solve this...

Cisco Switch IOS upgrade

Hi Support,                I am having 3 2960 switches in which 2 are having IOS version 12.2(55)SE3 and one is having version 15.0(2a)EX5.So I was trying to upgrade the IOS of the other two switches and I was able to download IOS from cisco page but...

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