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3750, cross-stack etherchannel, VMotion

Hi!I have multiple (3+) Cat3750 switches forming a stack, two ESX servers with multiple connections (2+) and am experimenting with VMotion (dynamically migrating virtual machines to another ESX host). Both ESX servers are connected to the same stack ...

rokp by • Level 1
  • 1771 Views
  • 0 replies
  • 0 Helpful votes

VSS Recovery after VSL Failure

Hi,I am using VSS configuration on a pair of 6509s with IOS 12.2(33)SXI3. After VSL link goes down the standby chassis sucessfully detects the complete VSL failure and initiates SSO correctly. This causes a dual-active scenario and the former active ...

Broadcast strom Problem

Dear All,Right now I am facing one problem related to broadcast or Multicast strom on our network.Suddenly Connectivity of some of the vlans are down. and after some time it;s working fine.Networ Topology is like :Backbone SW - 4510R   ---------- Onl...

Resolved! what does n-802.1q mean under trunking

Hi all,I have 3550 switch where i have enabled trunk on port fa0/1Switch#sh int trunkPort        Mode             Encapsulation  Status        Native vlanFa0/1       desirable        n-802.1q       trunking      1******************Port        Vlans a...

mahesh18 by • Level 6
  • 17681 Views
  • 2 replies
  • 5 Helpful votes

Catalyst 3900 Clock Battery

Hey All Cisco gurus!I purchased a Catalyst 3900 which is now throwing this error on bootFATAL SYSTEM ERROR: SS_RTC_Initialize: The Clock's Battery is DeadNow, im not TOTALLY silly, i've opened the switch up and taken the mainboard out, the backplane ...

Resolved! few questions about ipsec

Hi every body.I have few questions about ipsec.According to my book, ip sec is not a single prtocol but a architecture which consists of different protocols such as AH and ESP to name the few.These protocols are defined by different rfcs.Q1)  when we...

sarahr202 by • Level 5
  • 1100 Views
  • 6 replies
  • 0 Helpful votes

Cisco 3550 Switch not booting up

Hi all,I got switch 3550  it is not booting up i did console no luck then i rebooted while i consoled to switch here is output############################################################################################################################...

mahesh18 by • Level 6
  • 1304 Views
  • 1 replies
  • 0 Helpful votes

can not ping default gateway

Hi,I can't ping my default gateway which is a Pix from WLAN sub-interface, I can ping it from voice subnet, please see the related config.!ip dhcp pool LWAPP   network 10.2.205.0 255.255.255.0   default-router 10.2.205.250   option 43 ascii "10.2.205...

Limiting BW to a server **anybody??**

What is the best way to limit bw to a server? Here are the details. Server is connected to a 6500 that is running on a sup720 catos/ios hybrid code. The server is connected to a layer 2 gig switch port.  I have offsite users that connect to this serv...

Remote xmodem

I have an old 3640 that I inadvertently uploaded an IOS image to that will not boot. It keeps reloading to rommon. It's part of a lab that has a 3700 series router with console access via an NM-32A. I was wondering if there's any way to do an xmodem ...

Resolved! LAN QOS (on C3750) strategy

I'm working on implementing a classification and marking strategy for my network.  I've put together some syntax and have recieved some input from others about configuration but would like to know what you think.  These are the requirements;1 - Class...

Resolved! Multicast issues

Hi All,I have an issue regarding Multicast. We recently upgraded a control system network using 3750G in a "ring" topology, which was running several types of traffic (CCTV:roughly 100 cameras, SOS telephones etc).  Where we have been trying to intro...

STP

I am getting this error frequently on a 6509 switch:" (enable) 2010 Mar 19 08:20:02 PDT -07:00 %ETHC-5-PORTFROMSTP:Port 9/42 left bridge port 9/422010 Mar 19 08:20:03 PDT -07:00 %DTP-5-AUXVLANPORTOFF:Auxiliary vlan removed on port 9/422010 Mar 19 08:...

Resolved! NTP recurring

Hi  All,Please help me to understand the situation and solve it  My devices start to run on BST  two weeks earlier that it actually DST starts on Sunday, 28 March 2010, 01:00 local standard time DST endson Sunday, 31 October 2010, 02:00 local dayligh...

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