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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...

Hello,i have a pair of 4500x in VSS mode and i have 10-12x GRE tunnel :1. all of our tunnel will sing around 500mbps and 100-300k pps , is it ok ? can 4500x handle it? as i read it will handle gre in hardware2. if i apply tcp mss command in gre tunne...

Dears,I am trying to upgrade switches model 2960XR (in stack) and followed the standard steps (upload the new image ,confirmed integrity ,changed the boot system and reload)waht happened is that after reload that one switch from the stack downdraded ...

NetExprt by Level 1
  • 2107 Views
  • 5 replies
  • 5 Helpful votes

Hello everyone, I understand STP and Etherchannel. I understand why STP is used i.e. to avoid broadcast storms i.e. switching loops by blocking certain ports, and etherchannel is used so that all the links bundled in an etherchannel appear as one log...

Resolved! boot fail 3850

I get constant boot fail on my 3850 switch how to recover and go into rommon or switch: mode? I pushed and held the mode button in front of the switch 15 and 60 seconds 20 diffent times and just the one amber light flickers. please help.

Resolved! SD WAN

Hello All, i am looking to lean about SD WAN and can anyone guide to where and how i can learn about them please  thank you

star1 by Spotlight
  • 4055 Views
  • 12 replies
  • 0 Helpful votes

Good afternoon,I'm a student in college. I'm working on a Packet tracer lab, once I'm finished with my setup I try to ping the Loopback address on a Router  from PC1and PC2 and I keep getting "Destination host unreachable" message. I have been trying...

WC415 by Level 1
  • 14266 Views
  • 7 replies
  • 0 Helpful votes

 Hello Teamcan you please help on this ? I can't ping the SVI on the N7K (192.168.69.250/24) a peer  when both vpc peer are up.The  ping on the vlan 99 on the N7K (192.168.69.250/24) work fine when either NEXUS-PRIMAIRE or NEXUS-SECONDAIRE is powerd ...

O.Zang by Level 1
  • 1820 Views
  • 4 replies
  • 5 Helpful votes

Hello, I am fairly unfamiliar with packet tracer and I am having an issue with my file. I can get my routers to ping end to end except for my Site 2 Router (as seen in the file). This router is the only one that doesn't ping end to end as it doesn't ...

Im trying to set static IP for this access point but I'm a little bit confused.Anyone could help me here? Those are my lines:===========================================================================AP5488.de24.7f3c#SH IP% Incomplete command.AP5488....

iscduran by Level 1
  • 3027 Views
  • 9 replies
  • 0 Helpful votes

Hi guysI am hoping someone with a bit more knowledge can help me out here. I have two Cisco Catalyst 3850s which are used at work. It wasn't setup by me, just something I've inherited. It was setup by a previous employee who we don't have contact det...

rmcoombe by Level 1
  • 1655 Views
  • 3 replies
  • 0 Helpful votes

Cisco 9300-24T switch is not detecting the SFP-10G-ER. IOS Version: 16.12.4service unsupported-transceiver is enablederror disable detect cause gbic-invaild is disabled Even the SFP module is not showing when show interface transceivers. Suggestion's...

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