Switching

Hi. I have a router with 2 links from different ISP. I need to configure redundant link. When the first link down, the second link up. What protocol i use? Both links are in a router only. Thanks

hello. i have seen switch catalyst documention regarding ip phone. does ip phone frame has priority tagging? what is it? 802.1p? how framing looks like? if ip phone has then how to create priority for computer(windows XP) then i can priority some com...

hi i'm richard,im am now managing a cisco 1841 router with 12.4(1c) ip based ios version. I just found out that this image cannot support firewalll and NAC features. these features are necessary for the operation of my work as a network administrator...

Hihow can i do to communicate vlans only in one way? i mean i have vlan 2 and vlan 3, and i want that traffic from vlan 2 can see hosts of vlan 3, but traffic from vlan 3 can not see hosts in vlan 2, is this posible?thanks

I have recently installed an 1811 to handle a new, 16MB internet connection from our SP. They come to me off an 8510, hit my fa/0 on the 1811, then I have another, public address on my interface that goes and hits a port on the 3560.I configured a la...

I acquired a 2611 (all configurations cleared) and need to set it up between two networks like this: Eth0/0 (LOCAL): 10.20.30.40/255.255.0.0 Eth0/1 (REMOTE): 192.168.1.22/255.255.255.0 I need to be able to configure the router so that Eth0/0 can send...

Hey guys... Just a question regarding Dynamic vlans and DHCPA requirement has come up wherein i need to configure Dynamic vlans so that a user from XYZ dept can go anywere in the campus plug into a switch and authenticate to the same VLAN. (we are us...

I ran into a problem on the ccna that required me to identify out which ports an unknown unicast frame would be sent. I had forgoten the show commands that I needed to determine which ports were trunking and so forth. I have searched the cisco websit...

Thanks to all, just wanted to know the benefits or real advantages of pushing layer 3 to the access layer (closet switches, this is routing from the closet to the core over the common layer 2 trunks to a core design? I appreciate any input.

I have a cisco 3800 series router connected on the LAN side to an HP ProCurve 4000m switch. I can only get this connection to come 'up' at 10half (for speed/duplex) if I set both to auto, it negotiates to 10half. All other settings and the interfac...

Hi all, Can anyone tell me how to change the path that spanning tree takes, when uplinking a switch, would i just change the port cost ?

I have a Sup2 with MSFC2 running on CatOS. I need to erase the config on its MSFC and just have the sup boot up as a switch only. Here is what I plan to do. Can you please tell me if it's correct?1. Telnet to the active MSFC. "erase start".2. Telnet ...

my question is acturally two part1, how to use cb-shape to shape one class without shape other class2, how do different the the queue method(CBFWQ) is in the in shaper QUEUE (shaping queue) or is CBFWQ in the interface software queue(after shaping)...

Can any one suggest me whether NM-1E = Description 1-port Ethernet Network Module) support in cisco 2600 router.