Switching

Hi all,I configured cisco acs 4.1 server and cisco AIR-WLC4402-12-K9, which support only 12 access points.Wireless users configured with mac filtering authentication. Mac address database is stored on cisco acs server.so the scenario is wireless user...

Hi all,I have stand alone Nexus 7018 switch which is connected with 2 ethernet cables to ESX host (VMware V-Sphere 4).My goal is to create ESX host teaming for load balancing purposes between the N7K to the ESX host.I created Port-channel on the N7K ...

I have 3750 stacks on both sites to terminate 2 x 100MB WAN links. I will configure etherchannel for the two links so that we have 200M bandwidth.1) As the WAN link down will not indicate down to the switch port, will LACP help to detect the link fai...

We have a Cisco 3925 router with an EHWIC-4ESG card running on IOS image c3900-universalk9-mz.SPA.150-1.M2.bin.  A show diag shows this card as disabled/not supported.  Needing assistance to determine if the IOS code installed is the reason for the c...

Dear Experts,I have been experiancing a critical issue and I am in need of your support to find out the cause.The issue is, My Backup servers and few other production server are in the same VLAN.Whenever Backup jobs are running I could see lot of pac...

Hi!I'm Min-ho in korea and I have a question about convergence time.I have designed the network(see the below image) and each node operates multicast server(source) & client.I think that multicast routing protocol is used in this configuration like P...

One of my access switches wont allow me to set the policy on it's user interfacessa-us-oak-001(config)#int gi 3/1               sa-us-oak-001(config-if)#service-policy input voipThe policy voip cannot be attached to the interface Gi3/1 since it has '...

Hi all,I got a 3845 router which is running IPSec and QoS by service-policy which classifies all incoming traffic by IP precedence values. If I have a new requirement to handle the traffic of dscp 34(assume I have marked those interesting traffic at ...

HelloI have received several c2950 that have had their IOS removed and I can not get it back onto it. I have tried copy xmodem: flash: and the ios and that did not work. and I have tried tftp but for some reason that would not push the IOS onto it. I...

Hello,We have a stack of six 3750 switches.  Periodically, the switch stack logs a message indicating that the stack port on one side or the other of the stacking cable or on both sides simultaneously, goes down, then one second later comes up:Oct 10...

Could anyone help me to configure the VSS between 2 cisco 6500 switcehs.Thanks

I have a 6509 with many VLANs and a seperate DHCP server to provide addresses.  I need to create an additional VLAN (VLAN 20) and I would like to use the 6509 as the DHCP Server for the new VLAN. I know to set up:ip dhcp excluded-address 20.20.20.1 2...

Hi Forums,i am new on the CISCO IOS.. I am configuring my cisco 1841 with hwic-1t serial port but i have problems with nat for my LAN.The router "pings" all IP addresses but all LAN doesn't navigate. Where is my mistake ?interface Loopback0 descripti...

I added an image of a table present in the "CCNP Official Guide" by David Hucaby.Is it possible that the author reports so many fields with wrong lenghts?For example, protocol(16) or ICMP type(4).Or have I lost some concepts?