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Forum Posts
Hello,I have issue where Cisco Network Assistant 5.5 is showing Packets with Errors on some Gigabit Interfaces on a 3750 switch stack. Yet, when you telnet into the 3750 and do show interface, show mls qos statistics, show mls qos interface..., etc n...
I have several 2960/2640 switches with "ip default-gateway" configured. However, the IP of the default gateway recently changed, and the old gateway IP is no longer active. But these 2960's still try to send *some* outbound traffic using the old ga...
Hello Everyone,I have a customer who has ACE10 modules running in Active/Standby mode in two separate 6500s. The customer wishes to upgrade from 4G to 8G throughput, and add 20 Virtual Contexts. Is it possible to Upgrade just the Active one, and in c...
Here is my setup: Hardware: Cisco 851 Wired 10/100 Ethernet Router with latest IOS 12.4 Wii with 4.2U software version - bought in June 2 Wii LAN Adapters (One Rocketfish brand from gamestop, the other a Grey one from Ebay). ISP: Cox Communicati...
Work has begun on the dissection of the new 'header-type 3' ERSPAN Type-III header. The current release version of Wireshark does not decode this format at all. We currently have the copy of Wireshark in SVN decoding the new header and identifying t...
Anyone had a table shown the features difference among LAN Base, IP Base and Enterprise Services IOS??? In particular, want to check "IP multicast routing" feature can be turned on with IP Base IOS. A bit confuse in features nagviator and below pic...
we connected two supengine(WS-X45-SUP6-E)to two 4506-E chasis core switches(primary and secondary).But one sup engine is not powering up.checked again by swapping the sup engine.then the one which was not powered earlier comes up and the one which wa...
Maybe its by design but just my curiosity since this our first 10G line card... After insert 10G and put in production, when I ran show mac-add from 10g interface I only see list off mac address from module 9 (slot i had 10g line card insert). but ...
Hi,PC and switch use ARP to discover the destionation MAC address. When a packet reaches routers, do routers use ARP to discover the next hop router's MAC address?thx,Jingyi
i have a cisco 877w router and configured a wired lan 10.10.10.0 vlan1 and via a bvi a wirelss lan 10.70.10.0is it possible to make one vlan of them ?jilles
Resolved! connecting 6509 to a 3550 vlan/switching
I am connecting a 6509(10.x.x.x network) to a 3550(192.168.x.x network). I enabled ip routing. What else would I need to do to have the 2 switches communicate with each other, and other end devices too?Also on the 3550, all the porst besides fa0/1...
Hi all, I think this is a simple question but I can´t find the answer, yet!In a RSTP or MST enviroment, BPDUs are used as keepalives in point-to-point links. Correct ?? So if three consecutives BPDUs are lost, we can assume the path between the two s...
Hi,I'm trying to filter a mac address on a vlan using VACL/VLAN access map but i can't get it working om my 4510R. None of the traffic from the host seems to be filtered.I want to filter mac 001c.7ec8.e7b2 on vlan 11. Here's the configuration:mac acc...
I am trying to figure out why I cannot configure VLAN's on the ports of my 4507 through CNA. I am using CNA 5.5 I was able to a while ago then we put in a new VOIP system and now I do not even see the VLAN option for my 4507. My other switches in...
Resolved! Traffic Traversing VSL
We just bought some new toys, 2 x 6506 with VSS supsthey are connected by 2 x 10gig linksI keep reading in the documentation that traffic should never traverse the VSL links , because you use etherchannels everywhere, but what if you have devices w...
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