Other Network Architecture Subjects

HiSo I had RTR setup on a Cat4000 running IOS 12.1.8a for measuring jitter between the 4000 and a 2621 at the remote site. I wanted to make a change to the frequency and the docs said that you have to kill the rtr schedule associated with the rtr pr...

I am having an issue on my Lan where a mac address of 01000cdddddd is being sent by one of my 3550 EMI switches continuously. I have a majority of 3550s EMIs in my network. Most of the have multicast routing turned on in Dense-Sparse mode and IGMP ...

I have one network running EIGRP Autonomous system 1 and another running EIGRP Autonomous system 6. I need to seamlessly combine these networks. I had planned to bring up EIGRP 1 on all the routers running EIGRP 6.Due to number of routers and maint...

I understand it is a feature of 6500 Series switches that they can be configured to send the first packet for a destination to a Local Director first for a decision. After the decision has been made by the Local Director "once only" the 6500 routes p...

Hi all,I have problems login to CW from client machine, was working fine , it terminated my session and now i see the cw loading but no option to logon .I tried uninstalling and installing the j2re-1_4_1_02-windows-i586-isunmicrosystems did not work.

I have installed 3 Cisco 2940's in my network. These 2940's are linked to a 3750-12 with fiber. Only special config on the 2940 is IGMP snooping on 2 Vlans. By the way I only have 2 Vlans configured on the 2940's. I am not running spanning tree a...

Hi,I need to change all of the SNMP string details held in nGenius, is it possible to do it as a bulk change? We have well over 100 devices and I don't fancy doing them one at a time!!Thanks.

I need to terminate PPPoE over 802.1Q and again encapsulate them to 802.1Q on uplink port with specified VLan IDs.My situation is mapping IP to VLan tag, is it possible?or any solution/case studies for this purpose?Thank youMehrdad Rad.

What is the rule of thumb for subnet size and when the broadcasts begin to affect server performance?We have several thousand servers that have a console NIC and we traditionally have 24-bit subnets, one per VLAN. I am proposing a 22-bit submet, but ...

Please can someone provide me articles or a good reference book to configure CIDR for BGP.Thanks,

Hello , Do the 4SFP uplinks on the 2970TS-E can be all active ? As well , it says it has an L3 and L4 architecture , does that mean it routes and content switch in HW ?

Hi,I had very weird issue when using RME. All devices in the inventory are often disappeared. I have to re-import device from file. However it happens again after a while. What can I do now?!Thank you in advance.Wei

Only One of the device gives me below error when updating vlan configuration.any idea why this specific device is causing trouble.Failed Vlan Configuration Devices Summary"Device Name","Attempted At","Failure Reason""xxxx-xxx.xx.xxxxx.com","06 Aug 20...

During 2940 IOS upgrade the Switch shows the message and stop upgrading:Image info: Version Suffix: i6q4l2-121-22.EA1 Image Name: c2940-i6q4l2-mz.121-22.EA1.bin Version Directory: c2940-i6q4l2-mz.121-22.EA1 Ios Image Size: 3123712 Tot...

I've recently upgraded the IOS on a 1712VPN/K9 router and deleted the old IOS.Unfortunately the new IOS won't boot despite a successful upload. Thus a use 'bootlash' from rommon to get the IOS to boot up. Show flash: yields-1 c1700-k9o3sy7-mz.123-7.T...