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Catalyst 2960 and VLAN1

Hello-I'm configuring trunking on Catalyst 2960:interface GigabitEthernet 1/0/1switchport mode trunkHowever, if I do 'show vlan' I can see that GigabitEthernet 1/0/1 still belongs to default VLAN 1.  I'm not sure whether it was the case with old swit...

Resolved! IPv6 Subnetting questions

All,I'm having a difficult time trying to find any information on subnetting a v6 address into smaller subnets. A coworker is studying for an MS exam and they had a question on there that frankly makes no sense. The subnet calculators that I'm using ...

Resolved! Cisco 4900M high CPU utilization

Hi,I have a Cisco 4900M series, and every once and a while (~2 hours), the CPU reach more than 80% for less than 10 seconds.This causes the HSRP packets to be dropped / not be sent at all from the Cisco which resolves in Active Active state in the ne...

Resolved! Cisco 867 Router Configuration

Hi,Hopefully I'm in the right place to post this query. I just purchased a Cisco 867 router and want to get the unit configured. I should say this is my first time configuring a Cisco router and while it's steep learning curve it seems it's the lack ...

Resolved! Config of Crash info on router

Hi all,i have 2650  router with memory as shown below2650XM#sh verCisco IOS Software, C2600 Software (C2600-ADVENTERPRISEK9-M), Version 12.4(25d),                                                                                                        ...

mahesh18 by • Level 6
  • 1463 Views
  • 4 replies
  • 0 Helpful votes

link inconsitency and no traffic Gig-E from VSS distribution to 6504 core (inconsistent state & config weirdness)

Hi All,I have encountered a very STRANGE behaviour that looks remarkably like a major series of bugs (plural) all combined, as I can find nothing else to account for it.Overview of architecture:6506 VSS system on one end (distribution)6504 Sup720-3BX...

T1 bonding with Cisco 1841

I'm relatively new to cisco, so maybe someone can help me out.We have a 1841 router configure for a single T1 line, took me awhile to get this working.  Last week we upgraded to 2 T1 bonded by a Samsung Ubigate 1000A router.  I don't know where to st...

Resolved! Multicast on a single vlan

Hello,I need to enable multicast on a single vlan, the multicast sources and receivers are in the same vlan 310 for what I have configure the IGMP snooping on all switches where the multicast servers are connected (and in all switches through wich th...

sdurn by • Level 1
  • 1029 Views
  • 2 replies
  • 0 Helpful votes

EIGRP SIA, Query Behavior

Question1---------------I recently read about the behavior of how EIGRP handles queries.http://www.cisco.com/en/US/tech/tk365/technologies_white_paper09186a0080094cb7.shtml#queryrangeHere,as per the table given when Router one recieves a query from b...

Nexus link state tracking

Dear allI found a discussion from 2009 about the link state tracking. I am wondering if there is an update for the 5.0.2 release of a Nexus 5010 device in the mean time.Is it possible to do a link state tracking (shutdown the server port if the uplin...

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