Switching

HelloI have a pair of Nexus 7K's running 6.0(1).I have a handful of edge devices (Blades switches, CAtalyst switches)that I need to mark ingress traffic.I've created and attached a very simple policy to the port-channel and noting matches in the Poli...

I have a network which consists of 2 switches (3Com and a 2960) and also a Linksys router that is used for the internet connection to come in to where the vendor can remote in to help resolve any issues. There are also 3 servers for the web gui, reco...

I have two 3560 switches - a 3560G-24 and a 3560-48.  I am running the latest IOS release on each switch - 15.0(1)SE2 on the 3560G and 12.2(55)SE5 on the 3560.  I am running the same SDM template on each (desktop IPv4 and IPv6 default) and have IPv6 ...

Hi All,We have an installation with 20 VLANS distributed via VTP to all the switches we have. We have routing between VLANs enable. So, there is total access between VLANs.But, we would like to restrict access to the managemente VLAN. Using access-li...

Hi,We have a couple of 6509s with the firewall module (WS-SVC-FWM-1) in them.  There is a redundant link between the switches and the firewalls are set for active/passive. They're set up like this with 2 Nexus 5ks behind them: |\ /||/ \|Last night th...

I have 2 sets of VSS switches in 2 data centres, and have 2 10GB links between the 2 locations. If I connect either 1 or both of the links between the 2 VSS systems the link connects and shows on the switches as up. I see the cdp relationship work,...

Hi, I'm configuring two nexus 5548 to uplink to one 6509. The nexus switches will be configured with vPC. Should I create two different portchannels on the 6509 and use vPC or one portchannel from both nexus switches to the 6509 with vPC?Thank you

Hi,on a Cisco 4900M running IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-ENTSERVICESK9-M), Version 15.0(2)SG1, RELEASE SOFTWARE (fc4)I'm getting a lot of packets on CPU Q "L3 Glean, 6".What is that queue and what could be the root cause?T...

Hello I'm having a problem with a WS-C3750G-12S-E. I'm seeing CRCs/input errors only on specific interfaces on the 3750. Initially i thought this was a fibre issue so i cleaned/replaced the fibre patch leads as well as the SFPs at both ends. the CRC'...

Is it possible to downgrade the 4900M IOS image from Universal 15.x image to non-Universal (possibly IP BASE) 12.x image. If possible, how can this be done and what will the feature differences be? Thanks in advance.

Hello,I know that the C3KX-NM-10GT network module has two (copper) ports that support speeds of 1Gps or 10Gps. Could this module work with one port at 1Gb and the second port at 10gb simultaneosly? It's possible to work each port of the module with d...

Hi All,I am facing a problem in implementing HSRP. My scenario is like this, I have two 3750 switches and I have a server with two NICs. I want to run HSRP in these two switches. By the way the server is connected directly with the switches. I mean e...

Hi,we have two 6509 in VSS with STP configured.from each 6509 there is a link to service provider but to different office(equipment) of provider. one link is designated forwarding, another link is designated blocking. when i shut down the first inter...

I have System Camera with Cameras use DSCP code 34 ( Cameras in Vlan )  This is DiagramPls guide me config DSCP in this Case Thansk !