Switching

Hello Guys,I'm new here. I have the following problem. I did an IOS update on our catalyst 4510-R with Supervisor Engine V-10GE.The old software image was 'cat4500-ipbasek9-mz.122-31.SGA9.bin' and the new is 'cat4500-ipbasek9-mz.122-54.SG1.bin'.After...

Hi Alli have 2 X 6509 in vss mode. each C6K has dual sup running SXI5.i have noticed that the active sup is in one chassis and the bacup sup is in the second chassis and not in the same chassis, that is when the active cpu is down the role of  active...

Dear Support-Team,i studied IEEE 802.1q supports only one spanning tree instance for all VLANs.For achieving load balancing cisco intrioduced PVST+.then how PVST+ will work with IEEE802.1q???Regards,MJR

Dear All,        i faced repeated issue with Cisco2921 , it can't respomd to any ping or console although its Power supply LED is ON.when i replace it with another new one it is working fine.is it issue a global issue in this model?

Hi everyone,Here is our (very simple) network topology :- 3 switches : A & B & CA is the main switch (2970G) to which B (2970G) and C (2960S) are connected.- Between A & B : 500/600 Mbps pike bw- Between A & C : 400/500 Mbps pike bwThe problem is tha...

I'm having an issue with the voice quality because the switch ports are not honoring the DSCP values.  I'm assuming DSCP values are rewritten as packets traverse the LAN. Is there a way of forcing the switch to honor the dscp value without turning on...

Hi i have this situation with a router 877 ios 12.4T:interface vlan 2ip address 192.168.1.0 255.255.255.0interface vlan 1ip address 192.168.0.0 255.255.255.0interface Lo1ip add 10.10.10.0 255.255.255.01)i would like to block any type of traffic to vl...

I can't seem to get any of my serial connections to ping. I have three routers. One of the routers has multiple serial interfaces that branch out to the others. I went through all steps in my CCNA workbook, following everything to a T, but still noth...

Hi all,Here is output of policy map from my routersh policy-map  Policy Map CORP_POLICY    Class MATCH-FTP     police cir 56000 bc 1750********************************1       conform-action transmit       exceed-action drop    Class MATCH-HTTP     po...

Our network has two routers that contain two EtherSwitch modules.  Thetwo routers are connected together by bridge groups. The EtherSwitch to Router is trunkedby dot1q trunking. All traffic internally can talk to each other correctly, but when dealin...