Switching

Hello, I have two building about 500 yards apart.  They are connected via a Lightpointe FSO (Free Space Optics) Laser and Airbridge (802.11n RF) point to point bridge.  The transport up to the head is done via a multimode fiber optic cable.When the s...

Hi,We are testing currently the ASM in Nexus7k/5k VPC environment and we see duplicate packets time to time.Only F2 cards are in use in our lab and VPC is configured from host to nexus 5k and then to  DL(7k) swicthes.AL switches are only L2 and DL sw...

Hi,Could you help me. We have two 4506 in VSS with IOS 3.05.03E (15.2(1)E3) and we have this message :%C4K_SUPERVISOR-2-SOFTERROR: memory inconsistency detected: 0x0003In the "bug search" we found this message and it is recommended to upgrade.Before ...

I am having one Nexus7k with multiple (3) VDC's. I am having dual SUP (2E). Currently my SUPs are in active/standby.I am having one confusion about HA-Policy. If I configure HA-Policy for one of my VDC as "dual-sup bringdown" how it will impact for t...

I want to know the consequences of typing the command "no spanning-tree loopguard default" on a Cisco 6509 which is the aggregation layer of a Data center

Hi Everyone, This is my first post here. Until now I was only reading others posts - hope I can join and be more active as my knowledge will increase ;) Sorry for posting some maybe very basic questions - hope I can learn and become help for others s...

I have a Cisco DPQ3925C router with Cox internet (similar to Comcast) and I am having trouble getting port range forwarding to work. I have a linux computer with a static IP address and port number set up. When I enter the static IP under the interna...

Dear All, please help me by answering some questions in my work we have two different sites each connected to the main office "third site" with dark fiber using Cisco BX SFP "SFP with send and receive over same fiber core but with different wavelengt...

Does anyone have recent experience with HP enterprise class switches?The organization I work for is looking at buying new hardware and they are considering Cisco, HP and Extreme.Most of my experience is with Cisco equipment, but I've worked with Extr...

Folks:I am having some sporadic performance issues between two 2960x switch, which are connected by a port-channel with 4 interfaces. Due to the latter, I am suspecting that one of my interfaces in the port-channel is causing the issue. How or is the...

I have a core Cisco 4506 with several 4948  & 3020 switches and 1 OLD 3524 switch connected. One of the 4948's is set to VTP master and the 4506 is set to client and all others are set to transparent. When I turn off or disconnect the old 3524, a few...

The past couple of nights our Cisco AP's 1242's go down approx at the same time. All of the AP's are connected to a 3560 POE with one more being connected to another 3560 POE. About 10-12 hours later they come back up and connectivity is restored.It ...