Switching

Hello Experts, Lately I have been noticing mac flap messages on some of our access layer 3750G switches. Just a little background on how this is setup. These 3750G switches are stacked and uplinked to a distribution layer 3750E stack (2 switches) via...

Hi, I'll try and summarise this problem we have and I'll keep the info brief!We're implementing a LAN generally based around 4500 Series (4506-E/4510R) running Layer 3 with multiple VRFs to the access layer.  OSPF is configured as routing protocol us...

I Lease fiber between two locations, My operator limiting number of MAC addresses to 8 macs. Is there any possibility using some feature available in the Cisco 3750 switches to (hide mac addresses) encapsulate traffic witch flowing via operator netwo...

I've a doubt, maybe someone can help me to clear it out...Are there any differences between the autoqos commands on a WS-C2960S switches (or in any other series)? Follow the commands:- auto qos trust- auto qos voip trustI was checking the documentati...

Dear Experts,I getting error when i apply service-policy input name " low latency queuing feature not supported in input policy" on LAN interface. I need priority for VC (vedio conference) traffic. My configuration as given bellow. R1(config)#ip acce...

Hi allI have posted another similar question but I have found something, that Im hoping someone may helpWhen transferrign files from a windows pc to a windows pc from my office to a remote site the transfers are fine, however when I transfer files fr...

I have a cisco 2621XM with IOS 12.3. Is there a command for the cisco router to NAT the connection address within the SDP packet?Is there a command for setting a static NAT with a large port range for RTP? Right now I have to dedicate a whole public ...

We have been successful writing web interfaces to allow non-technical people to "shut" ports down in the event of emergencies, using SNMP with the "ifindex".Now we have a request to monthly pull an MAC table from a switch stack in the same method.The...

Hi,Are the following about configuration for the VRF Lite correct?- A route distinguisher is required in a VRF instance.- If BGP is running on a VRF instance, I must create a list of import, export, or import and export route target communities.Thank...

Good day!The situation is as follows:There is an Internet Service Provider (ISP1), has a Cisco ASA (8.4) (ASA1) with the external IP 1.1.1.1, there WEB-server with the internal address 10.0.0.186, which run web-application.On ASA1 configured NAT:    ...

0There are two stacks of WS-c3750X-24T-S.IOS c3750e-ipbasek9-mz.150-2.SE2.bin.First question is Is it possible to build IPSec tunnel between stacks. I read https://supportforums.cisco.com/thread/263171 about 3750but repeat the question just in case,...

HiI have two 3750 switches installed and both switches are conncted via optical Fiber as both are in different offices.On one of 3750 siwtch Orange light is flashing on GBIC port 25 This port has optical fiber GBIC module installed.On other switch it...