Other Network Architecture Subjects

HelloFollowing error message appeared on syslog from the switch C4507 :%HA_CONFIG_SYNC-3-LBL_CFGSYNC: Unable to sync config-changed command to standbyjust before this message, I have configured a new vlan and effected the ports to this vlan.I found t...

I made an upgrade to the 12.2.18.EW1 to 12.2.35.EWA1. 3 days after upgrade, the equipment was crashed and the active supervisor was restarted.I would like to know if someone had the same problem because I don't want to downgrade the equipment to the ...

I have four Cisco 2950G using Giga-Stacking connective ，I found fourth 2950G appeared in block with G0/2 interface , i am very sure no loop architectureIt's very stanger when i change Giga-Stack port form G0/2 to G0/1 , I didn't saw block message aga...

I have two 6509s running HSRP. These switches are configured as DHCP Servers for all VLANs. The IP Exclude address on one switch is 192.168.0.1 192.168.0.100 and on the other switch is 192.168.0.1 192.168.0.200. The subnet mask is 255.255.254.0 means...

Hi, Dear allRecently, I observe one port of 3550 switch give wrong information of 'last input' when i apply 'show interface' command. We always use the information of 'last input' to determine how long the interface doesn't transmit any packet (most ...

Is there a roadmap ( upgrade ) for the GIGASTACK 3500XL switches. A customer of mine wants to migrate a 8 cascaded Gigastack into a redundant "normal" GBIC topology .

Hello,i just got done upgrading the IOS on my 4507R core switch. i need to get the IOS over to the redundant supervisor engine. i am trying the following command:copy slot0:cat4000-i5k91s-mz.122-25.EWA1.bin slaveslot0:cat4000-i5k91s-mz.122-25.EWA1....

If you enable jumbo frame support on a switch or port what happens to that jumbo frame when it has to exit a port that doesn't support jumbo frame...say a regular 10/100 port with a PC attached.Does it re-frame it and fragment according to IP? In ot...

I have a port that went into errdisable due to a DTP-flap what is this and what is causing it

is there anyone who change whole IP addresses in network? there are 1000 computer and I need a procedure for this process.

Hi...I was reading how to set up vpns between two PIX firewalls via internet. Each firewallresides behind a router at either site. The fist step was to test connectivity between the firewalls at each site before establishing vpn. This involved pingin...

Can you help me find a boot helper image for the msfc3? I can't find one on Cisco website?Seems I've had issues trying to Xmodem the large full images.Does the MSFC3 even have a boot helper image?

If so, does anyone know of a good tech reference or RFC that discusses this?Thanks

Dear Support,Just wondering if anyone can advise me the snmp configuration required on 2621xm routers to enable bandwidth monitoring of the ethernet interfaces.thanks in advance, Adrian.