Switching

3750 Switch Console Problem

Hi allI am trying to console to WS-C3750E-48PD.We have around 63 switches.Five of them are having same issue.Its showing some unsupported character while we are trying to console.I had tried changing console cable,also tried with different PC.If any ...

NTP / Nexus 7K

I'm having issues with time synchronization on some 7Ks. It looks like the default VDC is setup for NTP:clock protocol ntp vdc 1!ntp distributentp server 192.5.41.209 use-vrf defaultntp peer 192.168.19.2ntp peer 192.168.19.3ntp server 208.66.175.36 ...

Resolved! Media converter

What can I use as a media converter? our service provider dropping fiber to our data center and need to trunk these to our 6500 switches and no more fiber ports on them so we need a media converter. Can i use a 2960 as media converter. Thanks .

Resolved! SPAN on Multiple Ports

On a 3560 or 3750 is it possible to SPAN multiple ports in 1 session to 1 destination port, with both tx and rx packets? So this:#monitor session 4 source int f0/2 - 10 bothmonitor session 4 dest int f0/11I'm able to enter the commands, but when I...

Resolved! Switching between ISPs in case of failure

Hi allI have a question regarding redundancy of internet connection. We have three firewalls each connected to different ISPs and all of them are connected to one central cisco router of the LAN. Now, the internet traffic is going through the firewal...

automated device provisioning (reset)?

For a lab setting, is there a way to automatically reset all devices to default/destired settings, no matter what has been done, including changing password, misconfigured console/aux/vty lines, deleted image file, disabled ports etc...For example, I...

storm-control recommendation

Dear all,I'm playing with storm-control for a better network stability.I use this configuration it it seem to work fine, because I get no traps .. BUT today i had a attack to one router and the strom-control didn't inform me.So I'm thining of imporvi...

Layer2 switch with 12 or 24 FE ports 100BaseLX

I need 100BaseLX Layer2 aggregation switches .. The IE3000 offers 8 ports 100Base-SFPs ... is there a 19'' model (not rugged) with 12 or 24 ports ?- the L3 metro switch are too expensive- the 3750 and 3750x 12 or 24 do NOT support 100BAseLX SFPs (GLC...

Resolved! Portchannel Adding vlan without downtime

I have a port channel defined between two catalyst 2960S switches as shown belowinterface Port-channel1switchport trunk allowed vlan 10,20switchport mode trunkswitchport nonegotiateinterface GigabitEthernet1/0/47switchport trunk allowed vlan 10,20swi...

Difference between "ip flow ingress" and "route-cache flow"?

GreetingsBoth ip flow ingress and route-cache flow commands are available on my Cat6513 IOS 12.2(18). When reading the the command reference it's unclear to me what the difference is.Can someone please shed light on this for me?RegardsFredrik Hofgren

CISCO 6500 VSS restarted.

hello guys,i have a cisco 6500 switch in VSS and suddendly one of the switch in VSS got restarted... crach file got generated, please let me know if something you can find out, (software or hardware issue)Software Version Running: ADVIPSERVICESK9-M, ...

3750X Stack Problems

A colleague of mine powered on a 3750X switch and added it to an existing stack before the stack finished booting. Now, it seems as though the switch is in a continous loop. Here is what I have done to try to resolve the issue:- reload the entire s...

Resolved! Trunk to Trunk VLAN

Hi I have switch A interface 1/0/1 trunk (VLAN 1) is connecting to switch B (VLAN2) interface 1/0/1 trunk. How do I route the packet from VLAN1 in switch A to VLAN 2 in switch B?Switch A:interface GigabitEthernet1/0/1switchport trunk encapsulation d...

3750-24FS-S to 3750V2-24FS-S

We are using c3750-24fs-s switches on our LAN. It is our understanding that these switches are end of life and the c375v2-24fs-s is the replacement, and our assett team ordered V2 with the last shipment.Now we see thered is an issue. The 3750s deploy...