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Hi,       i am trying to connect 2950 and 29601) Trunk port is up on both the switch2) i can see other switch when i do sh cdp neigh3) VTP domain name is blank for both the switch4) There is no VTP passwordbut still VLANs are not getting transffered ...

cisco by Beginner
  • 10 replies
  • 0 Helpful votes

Hello,We've recently implemented port security on our switches and it seems to be working quite well.  The problem is that some branches figured out that if they reboot the switch, the ports that were disabled due to port security are re-enabled sinc...

gshamlian by Beginner
  • 4 replies
  • 0 Helpful votes

I have recently added a 3750E-48PD to a 3750G-24PS (stack).  I had planned on just leaving the 24PS as the master and the 48PD as the slave, but they had different hardware versions:Switch/Stack Mac Address : 0026.0bea.4880                           ...

I understand the concept of vlans with a router on stick with one router and one switch but it is possible to connect to switches together and do vlans through the router?

DJames by Beginner
  • 4 replies
  • 0 Helpful votes

Hi - I'm lookign for a guide that details the steps required to replace a failed supervisor720 that is now / would be the standby. I have seen several situations where the replacmeemt module is inserted & does not drop straight in where the old one l...

We recently replaced our 4006 with a 4510 (all gig ports).  I have had a few machines with Intel 82567 gig cards that are acting up.The one I am working with now will show connection for 4 seconds and then give a "net cable unplugged" error.I have tr...

paulc by Beginner
  • 2 replies
  • 0 Helpful votes

I have an esoft internet gateway appliance that is producing this message :Feb 25 00:00:21 System martian source from, on dev br0Feb 25 00:00:21 System ll header: 00:01:4e:01:7a:b4:00(Destination - E-soft App):1e:f7:ae:b6:...

HiCan anyone tell me the sequence of events I need to take when swapping out my backup sup720 in my cat 6509 running normal IOS.when I slot in the new one, how do I know its fully booted in the background?How would i check what IOS is on it? would I ...

Resolved! Cisco C3750G-12S-S

Hi,I would like to find out whether this switch come with the fiber optic interface or not. Is it only provide the SFP and we need to purchase the module?Appreciate for any comment and adivce. Thanks.

HelloI have an Cisco 1800 router that doesn't want to recognize 128 MB flash cards. I tried the flash in an 2800 router and it works. I updated the IOS and the rommonitor but it still doesn't read the 128 MB flash card. If the card is smaller it has ...

Hello all.We have an old RPS system, rps 300, that supply redundant power supply to our switches when primary power source becames unavailable, but when primary return, switches remain into RPS power, and we need to reboot switches to return to norma...

Resolved! SPAN not working?

I have 6509 using sup 720's and Version 12.2(17r)SX5. I configured a SPAN but I'm not getting any packets on the monitor port. It seems pretty straight forward but it's not working and I'm not sure why. I'd appreciate any suggestions here.The configu...

rshum by Beginner
  • 2 replies
  • 0 Helpful votes

Hi,We have installed a 4948 its spanning tree mode is MST, we need it to be in PVST.spanning-tree mode ? - only has the option for mstno spanning-tree mode - doesnt revert the switch to PVST mode.How do i get the switch into PVST mode?ThanksChris

chris by Beginner
  • 5 replies
  • 0 Helpful votes

While monitoring one our of 3825's on bootup, I noticed the following:System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)Technical Support: http://www.cisco.com/techsupportCopyright (c) 2006 by cisco Systems, Inc.System Bootstrap, Version 12...