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I am doing some DOA testing before I send the switch to site when I noticed that when I issue the show power command I receive the following output. Power Fan InlineSupply Model No Type Status Sensor Status------ ---------------- --------- ----------...

Hello, I have the following situation: 1. Network1: 192.168.1.0/24 gateway 192.168.1.2 2. Netwotk2: 192.168.2.0/24 gateway 192.168.2.2 3. Network3: 192.168.3.0/24 gateway 192.168.3.2 4. Linux box with the inside NIC with 3 interfaces: 192.168.1.2/24,...

bcheing01 by Level 1
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Hey Cisco community! I ran in to a problem when trying to downgrade the software on our new Cisco 3650-48FQM access-switch. The switch is delivered with Denali 16.03.X and we don't want to use that software at this stage.  I tried to install the fol...

micke_eri by Level 1
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Dear All, i have one C4500 as a core switch connected to access switch 3750X (6 switches as stack) so we have received this log on C4500: 001201: Apr 23 20:35:36.121: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 2395 times)Packet received w...

Hello experts,I need you help to understand the MAC table output of a cisco WS-C6509-E switch. I was trying to trace the L2 path from this switch to the IP 10.64.130.20 which is the next L3 hopI pinged the IP from my 6509 switch & checked the ARP. Fr...

Aloha! I would like to set the "admin" password but the User management screen doesn't allow one to change it, it is grayed out.  I also tried to run Express Setup and although the documentation shows a password setting fields, they do NOT appear on...

I have Brocade ICX 7450 layer 3 Switch connected to cisco Router 811, from local PC in the switch I can’t access the internet, from the PC I can successfully ping the public IP address at the Router ? Any help will be highly appreciated;  the main pr...

Hi all, I have a question that may seem dumb to the engineers in this forum.  However, but if possible do answer.... In below topology i have to make PC0 should not communicate with PC1 and PC2 should not communicate with PC3. But PC2 should talk t...

I am attempting to convert a configuration from 3845 to a new 4351, but seem to be running into some trouble. I cannot determine if there is a direct replacement for the AIM-ATM module for the ISR4K. The new hardware I am using is a ISR4351-SEC/K9 wi...

jehooper by Cisco Employee
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Resolved! Network Flapping

Hello Network Gurus, I noticed network flapping between g1/0/1 and g1/0/2 Both has stp portfast configuration on g1/0/1 a dummie switch has been connected. Could it cause the network flap?

Dear Friends, Hello First of all, sorry for my weak English! I've got a Cisco 887va-K9 and I want to connect it to my ISP (A1-Austria) with the credential they gave me. (I am sure that my username and password are correct. I already connected to in...