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Resolved! OSPF route from dead neighbor

Hello! We detect strange situation in our product environment with OSPF. Screenshot from router console attached. Neighror with ID 172.30.255.21 absent in neighbor table, but command sh ip route display route to network through this neighbor: Routi...

BPDU Guard, err-disabled and IP Phone

Hi,A computer is connected to a Cisco IP Phone. Once in a while, the port gets err-disabled and we receive a user complaint. Switch logs show the following:Dec 26 18:10:31.872 CET: %SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port Fa1/0/32 with BPDU...

class-map match conditions?

I am trying to understand what the differences are (or if there are?) between the following class-maps on a Catalyst 2960X: class-map match-any multimedia-class  match ip dscp af31 af32 af33 class-map match-any multimedia-class  match ip dscp af31 ...

asp drop-help

HiI am facing some slow downloading issues . Its like if i download some files from internet suddenly traffic rate reducing .from the attached asp drop output how can i analyze Thanks

Resolved! Connection closed by foreign host

I'm a student in IT and in packet Tracer we created a network with switches.Now I configured the ssh for  remotely connection from one of the pc's.Because it's in packet Tracer I only can use cmd-prompt (no putty or TeraTerm) My configuartion:  #conf...

Valeriek76 by Beginner
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  • 4 replies
  • 0 Helpful votes

4500x vss no cdp neighbors

Hi,  i have 2 4500x connect via VSS . they r currently the aggregation layer at my network and have other cisco switches connect to them. the issue im having is when i type show cdp neighbors  there are no entries at all. everything is working fine,...

need your support

Dears,kindly need your support to handle my case urgently and i candidate to 300-101 exam on 15/3/2016 at 5:55 pm at hero tech center on nasr city cairo egypt and neither  command copy running-configuration startup-configuration  nor ( copy running-c...

Prevent multicast traffic between VLANs

Hello everybody, I've a question about multicast routing on Layer 3 switch. Currently we have a Layer 3 switch (Core switch: Catalyst 6880x) with SVI configured. Multicast routing is configured for some SVI (Ip pim sparse-mode). Is there a way to pr...

g.ska by Beginner
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  • 1 replies
  • 0 Helpful votes

Resolved! Unknown Log Messages WS6506E

Hello,we have a 6506E with s72033-adventk9_wan-mz.122-33.SXJ7.bin.Mod  Sub-Module                  Model              Serial       Hw     Status---- --------------------------- ------------------ ----------- ------- -------  1  Centralized Forwarding...

hdussa by Beginner
  • 1557 Views
  • 11 replies
  • 0 Helpful votes