Switching

We have been having an issue with our Catalyst 3560 switch running IOS 12.2(37) where the devices plugged into it can run a continuous ping without issue within the same VLAN fine but when we disconnect the CSU connection from the router the switch s...

Dears,       anybody can help me in access list to restrict vlans in my core switch. I have 3750 core switch created 7 vlans.interface Vlan1 description core & mangment ip address 10.1.2.1 255.255.255.0!interface Vlan2 description edge switch ip addr...

Hi,In my set up, I have a Cisco 3560 Layer 3 switch in which I have created 4 vlans (say 192.168.1.0/24, 192.168.2.0/24, 192.168.3.0/24, 192.168.4.0/24) and above that I have 2 Cisco routers (say A and B). In my current setup, by default, all traffic...

Hi there,I am currently using a C3560-24TS running c3560-ipbase-mz.122-25.SEE2 for a top of rack access switch.From what I can see, to use ipv6 based access-lists I would need to upgrade to the advanced IP services image.I was wondering if any one co...

Hi,I need to configure QoS on 2960 SW and also on trunk ports.I have these values:Vlan 802.1q CoS 5 and 4DSCP CoS Trust (CoS will be marked by codec, 5 and 4) :TCP 1720 DSCP AF31 (26)TCP 3230:3243 AF31 (26)UDP 3280:3285 DSCP AF41 (34)What must be co...

I have a setup where I have 2 seperate data circuits, a primary and a redundant connection.  In the event of the primary connection going offline, I need to secondary connection to pick up without a configuration change.I have an application server t...

What security issues exist in a  blade server environment that dont exist with standalone servers?I have a  client who is deathly afraid of going with blade servers because he  provides services in a shared infrastructure and he is afraid of some  so...

Hi guys,I have a couple of questions that I could not find answer.Do these switches both support q-in-q?Can I use regular SFP in the SFP+ slot?

Hello,I have a strange situation on one of my customer´s Data Centers:There are some servers connected to a C6509 switch via GigabitEthernet links set up at 1000/FD. I have observed the next difference regarding the throughput:- If flow-control is di...

Please let me confirm can we insert Gigabit Ethernet modules 10 Gigabit Ethernet modules in 6506 switch during operation i.e. it has this hot swappable feature, and if we can do, then send me the Cisco document regarding this.Thanks,Majid

Dears, I would like to do application traffice classification using NBAR,if i configure my router with the following configuration,even it will work without install the pdlm for each protocol, Router(config) # class-map match-any peer-to-peerRouter(c...

Good day.We use q-in-q tunnel via catalyst4506->catalyst4900M->catalyst4900M switches. Scheme is attached.There is no any notifications on the 4900m switches but on the catalyst45060Jun  2 06:51:39.401: %C4K_EBM-4-HOSTFLAPPING: Host 00:13:80:84:F4:31...

Hi I'm currently preparing BSCI certification exam.  I'm reading about multicast routing actually.  I read the Authorized Self-Studdy Guide BSCI for my preparation to the exam.First, I find something is a little bit in contracdition in the text of th...