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Hi everyone. I have a strange situation where one of our 831b is showing 100% CPU usage and the users aren't complaining at all. I checked the processes and didn't see any that were taking up CPU. The traffic is negligible from what I can see. The ro...

How I can change size of Ethernet frame at cisco 871 ?I have channel (point to point) from my ISP. Topology of this channel is "Bridge".This schema doesn't work :cisco871 <- ADSL modem -> ISP <-- ADSL modem --> cisco 871192.168.11.1 192.168.11.2...

ksn77 by Level 1
  • 773 Views
  • 4 replies
  • 0 Helpful votes

Resolved! OSPF

My 3560g-24 will allow me to configure router ospf xx but doesn't take me to the next level. However if I configure router eigrp, it takes me to the next level. What could be the problem?

mlucero by Level 1
  • 711 Views
  • 6 replies
  • 0 Helpful votes

What is the frame structure of the DHCP reply?? when i have dhcp server at e0 of arouter and a pc at e1.....at first :pc will send a broadcast request for dhcp server and the router will forward the broadcast frame by using &quot;ip helper adderess&q...

Resolved! Bandwidth

Dears;I need to do some check on a network in terms of bandwidth, redundant links to check for any upgrade needed.currently i don't have any software.how can check this?

w_basheer by Level 1
  • 522 Views
  • 2 replies
  • 0 Helpful votes

We want to deploy televison services on our network and have 2 x Cat 6509 Cat IOS in collapsed mode in placed.Where do I start to look for information in order to deploy this successfully?What do I need to do and look out for?Thanks

londint by Level 1
  • 310 Views
  • 1 replies
  • 0 Helpful votes

I would like to know how to check the current interface usage on 6509 running CATOS? The interfaces are configured under a VLAN or as trunk. Could you please let me know which command is appropriate in order to check the current interface usage? sho...

amin.amor by Level 1
  • 6398 Views
  • 5 replies
  • 0 Helpful votes

We have some 4507 access switches that we would like to convert to L3 but have some printer vlans that span across multiple switches. Is it possible to do L3 at the access and still keep certain vlans spanning across multiple switches? If so, could y...

jcmattos1 by Level 1
  • 505 Views
  • 1 replies
  • 0 Helpful votes

halloSTP use the cumulative port-cost to build the loop-free tree.In a STP switch if two ports has the same cost, the switch choses the port whith the lowes ID (es. between F0/1 and F0/2 it chooses F0/1) but if I change the priority of the port so th...

fsoffia by Level 1
  • 447 Views
  • 1 replies
  • 0 Helpful votes

Can anyone guide me with this error please...4w5d: %C4K_EBM-4-HOSTFLAPPING: Host 00:19:06:14:20:BF in vlan 40 is flapping between port Gi6/40 and port Po14w5d: %HSRP-4-DUPADDR: Duplicate address 10.4.95.253 on Vlan40, sourced by 0019.0614.20bf

I recently connected a 1GB interface card on a Server to aSFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX on a Cat6509 running 12.2(18)SXF4 but it just refused to come up.I tried a combination of speeds and duplex but it still did not work. Do ...

londint by Level 1
  • 490 Views
  • 5 replies
  • 0 Helpful votes

Hi, I've stacked 4 3750-48TS together, and configured master member switches.But what happens when 1 of them fails, and i put a new 3750-48TS into the same location, will the others configure it to the same as the old. And what about the IOS? Will it...

espenlore by Level 1
  • 2643 Views
  • 1 replies
  • 0 Helpful votes

Resolved! 1721 and t1

Hi,I've a 1721 cisco router and I need to purchase to my ISP (Telefonica Spain) a point to point conection to internet.What kind of wic have I need to purchase?best regards