Switching

Dear All!After calling Cisco three times without response, I need to ask this most likely simple question right here.How many vlans does a 881 router support? Will this be the same number for dhcp scopes? Thanks for your time.....hopefully you guys c...

Hi Friends .. when there is any topology change in non-root bridge , it will generate the TCN bpdu and it will send to all bridges , once root bridge sends the TC bpdu it will flush out the mac table in 15 seconds. What happens when there is a topolo...

Hi there,  As far as i know hardware-base switching is used with CEF table in  P/DFC. What about 2K/3K switches? Do they support hardware-based ? or just software based ? Thank you : )    

 Hi All,I setup access-list on Router2 to disallow access from PC1 to PC2 but it didn't work.PC1: should access PC2, shouldn't access PC0PC0: should access PC2I setup, access-list 101 deny ip 192.168.0.127 0.0.0.128 192.168.0.0 0.0.0.128access-list 1...

I need help!I have bought two layer 3 switch and two ASA 5515 IPS to create a redundant topology for my local network.  I have two link for access the internet and I want know how to connect the service provider and make a failover connection.   How ...

  Hi, I want to configure etherchannel between 3750 stacked switch & a 3560G switch. Can you  pls confirm if this is possible and what protocol(PagP or LACP) should i use to configure this. 

I have two 3850 in stack, these are in mode install. i need upgrade to the version 3.3.0, how do i upgrade these switch?

Hi,I have a SM-32A module installed in slot 1 in a Cisco 3925 router to act as a terminal server providing reverse telnet sessions to various other device console ports. My understanding is that the ports on the SM-32A are referenced as "slot/port" -...

Hi all,After upgrading a 1921 (C1900-UNIVERSALK9-M) from 15.1(4)M4 to 15.2(4)M6, when issuing a show run we see the following log output: Apr  8 07:15:38.336: Could not set disable/enable learning on port(0)Does any one know if this is a known bug an...

We have got problems with one of our Cisco SGE2010p 48-port Gigabit Switch. If one host sends data, it will be replicated (and can be sniffed) on every single port. If we have heavy traffic on the device (for example backup) then other services maybe...

Hi,On one of our N7K, we have some packets dropped by the COPP policy in the class-default class-map. :Partial results of "show policy-map interface control-plane" not so long after clearing the counters :class-map class-default (match-any)      set ...