Switching

how do I create a vlan on an access switch. I dont need this vlan broadcast to all networks though. also I dont need to do this on a core

Had an odd issue that started up last few days..  Have a port on a cisco 2912 XL that keeps dropping (drops all packets) on a certain VLAN, but still passes others.  Spanning-tree for that vlan says all ports are in forwarding status.  VTP says that ...

The other day  3rd party supplier ran some stats on our Gigabit link between 2  Cisco catalyst 3750Gs.now the graphs produced showed only a Maximum output of about 100Mbps ( 5 minute intervals) yet when I do a show interface it shows a lot more alway...

This can't be right, it's on our 2951. I don't have another router to compare with, but shouldn't g0/1 have the same MAC listed for it's MAC and the bia?GigabitEthernet0/0 is up, line protocol is up  Hardware is PQ3_TSEC, address is f866.f2dd.8820 (b...

I am looking into converting to 2 rings (one Gig and 1 wireless).  The issue is the wireless ring.  To expand the rings, we loose the ability to control the flow of traffic to the gig links.  RSTP in the configuration will be too slow to converge.  H...

We have issues with only these MacPro models negotiating 100/full on our 3560 switches running IOS version 12.2(25r).  If I set the port to auto/auto on both ends it negotiates 100/half.  If I hard code the port to 100/full and then have them them ha...

Hello network and may be security gurus,I've beating my head against the the above said problem for  a quite a while. Our client has a very strict security policy and they require all standard protocol to comply with the expected behaviour. It was di...

Hi,when i read the RFC-Recommended Values for Marking, which is in Cisco QOS design Guide docments...i noticed that COS 4, IPP 4 and DSCP AF41  recommended for Video payloadand Cos 3, IPP 3 and DSCP CS3 recommended for Voice/video signaling my quest...

Hi,Does anyone know what the message below means?  It's from our WS-C4506-E log running Version 03.01.01.SG.Dec 20 16:27:26.182: (Suppressed 851 times)Dup Packet Fail for Sw PortDec 20 2011 16:27:28.068 UTC: %LINK-3-UPDOWN: Interface GigabitEthernet4...

Hello, I need to configure a pvlan trunk on DELL enclosure with Cisco Blade Switch, to permit pvlan and a normal Vlan.My version is Cisco IOS Software, CBS31X0 Software (CBS31X0-UNIVERSAL-M), Version 12.2(55)SE, RELEASE SOFTWARE (fc2)But, when I want...

Hi all,I have enabled IP  SLA and static route on Layer 3 Switch for redundancy.When i test the connection it uses the static route.Then when it comes to Primary connection  i did debug ip ospf events.Now i see one new line in log that i never saw pr...

Hello,I am having a bit of difficulty building up the components of the Cisco 6506E I am not too sure of the parts i need and I am also using the cisco configuration tool but there are so many componbents and its a bit overwhelming. Cost is a huge fa...