Switching

We are planning to upgrade from VTP version 2 to version 3. Is downtime required for this change? Could you please share any document stating the steps of this change. I searched online but couldn't find one.

I am trying to configure a port channel on a Cisco 2911 with switch module installed. I am trying to use the switch modules interfaces but I don't have any option for channel-group under the interface mode. The router has ipbasek9. Do I need differen...

Hi there, We have classical Hub&SPOKE topology where branch routers connected to HO Router over ISP VLAN number xxx ( with private IPs ).In addition to,we implement IPSec Site-to-Site VPN for security purposes over GRE tunnel.Let's say,WAN interface ...

I have a cable modem connected in router g0/0 receiving dhcp and g0/1 internal lan connect to switch. I am able to ping the outside world from router but not switch and can't figure out what's wrong. Please Help

please can someone help me about the technical specification below: - the max MAC adress table - max IPV4 route - max IPV6 route - max IPV4 multicast routes - max IPV6 multicast routes - queue /port 

Hi all, Our layer-3 switch has all routes configured like the one below: ip route vrf TEST 10.10.10.0 255.255.255.0 Vlan20 20.20.20.20 Usually when you add new router you just use exit interface or the IP address as the next hop. I am confused why ...

Hi, we have more than 150 workstation in our network and many servers and more than 15 vlans, when i ping any vlan id , my ping time is not stable and changing with different numbers, anyone tell me the cause and the best solution for that? thanks in...

Our network architect came up with this reply when i suggested to split the /20 shared vlan into smller subnets /23 each  Segmentation: Current client Vlan is /20 (up to 4000 clients). Anyhow, DHCP range is much smaller and with today's switches, cli...

please can someone help me about the technical specification below: - the max MAC adress table - max IPV4 route - max IPV6 route - max IPV4 multicast routes - max IPV6 multicast routes - queue /port 

Hi all, I have a issue with my Cisco switches. On each switch I got the failure. Diffenrent VLANs and different MACs are affected: %SW_MATM-4-MACFLAP_NOTIF: Host 0000.0000.0000 in vlan 20 is flapping between port Te2/1/1 and port Po22 %SW_MATM-4-MA...

If a router supports wide metric, does it necessarily use wide metric if the EIGRP process is in named mode? R1#show eigrp protocols EIGRP-IPv4 VR(init-eigrp) Address-Family Protocol for AS(100) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 K6=0 Metri...

I have a 2 x 6880x with only the built in 16 ports on the chassis. If I create the VSL link between these using 2 ports from each chassis, does this render the other ports to a disabled state that cannot be used? Or does this info refer only to ports...

Hi, Due to maintenance work in the data center, I need to shut down two cisco WS-C6506-E. Both of them have FWSM modules installed and one of them also has a NAM module. Which is the best/safest way to shut them down? I was thinking in doing like th...