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Nexus 5k - LACP configuration

Here is the scenario that we have:We have two 5K nexus switches (A and B) with several 2K fex switches (blades). These two switches have a VPC connections between the two of them. We have a server that has 4 ethernet connections,  NIC 1 and 2 going t...

Resolved! WS-C2960S output drop values change randomly

I have a stack of 4 Cisco WS-C2960S-48FPS-L switches running c2960s-universalk9-mz.122-58.SE1 code.  One of our network monitoring tools is indicating discards on a certain port on the switch.  Upon further investigation I am seeing the Total output ...

Sup720 - SSO and ssh issues - Mod 8 continually reboots

Just upgrading our 6513E chassis in the lab before I install it into prod. Wanted to have ssh support, so I upgraded to the latest K9 image.But as soon as I did that, my standby sup (sso mode) now continually reboots.I tried an older safe harbour K9 ...

dclee by • Beginner
  • 610 Views
  • 7 replies
  • 0 Helpful votes

ip mtu on 3750/3650x ports

I'm not able to set the mtu on an SVI or routed gigabit port on either model. they are running 12.2(55)SE4.It comes back as "% ip mtu is not supported on this interface".Anyone know why?Also, is there any reason why when the "ip tcp adjust-mss", (set...

Resolved! Changing Native VLAN

I've been updating some of our sites, and in the process I changed the native VLAN from 1 to 10, which is our data VLAN. Is it bad practice to change the native VLAN? What should I take into consideration when thinking about changing the native VLAN?

Unable to Write the config in 3750 switch

Hi While trying to save the config i am getting with the below error, can anybody help me solve the problem.building configuration...nv_done: unable to open "flash:/config.text.new"nv_done: unable to open "flash:/private-config.text.new"nv_done: unab...

sauravcgc by • Beginner
  • 1332 Views
  • 1 replies
  • 0 Helpful votes

Resolved! 3750 stack - replacing members 3750g with 3750e

Currently I run a 3750 stack with the following members:sh run | incl provisiswitch 1 provision ws-c3750g-24ts-1uswitch 2 provision ws-c3750g-24ts-1uswitch 3 provision ws-c3750g-24ts-1uswitch 4 provision ws-c3750g-24ts-1uswitch 5 provision ws-c3750g-...

lvdlugt by • Beginner
  • 2249 Views
  • 7 replies
  • 0 Helpful votes

Maximum VLANs in transparent mode

On a low-end switch like a 2960 the maximum VLANs is 255, as shown in the output of VTP status:Maximum VLANs supported locally   : 255Number of existing VLANs          : 245When the VTP mode is changed to transparent, VLANs from the extended range ca...

jamesl0112 by • Beginner
  • 2402 Views
  • 4 replies
  • 0 Helpful votes

VTP update troubles

     Hello.Can anyone help me with this troubleThereis network with c3750e and 4900m switches.nsk-cat6 is in server mode, all othears in client mode.When adding new vlan on server? some of the switches das not update vtp database.vtp domain is okvtp ...

a.savelyev by • Beginner
  • 1369 Views
  • 9 replies
  • 0 Helpful votes

Resolved! DHCP Bindings

I have been reading the Cisco Press CCNP Switch book and I am partially confused on one of the topics. The topic is DHCP Snooping, I am not grasping how a layer 2 switch can hold the MAC to IP bindings. I could see this on a layer 3 switch, but gener...

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