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Resolved! Slow VLAN interface response (slow ping)

Hello,I would like to ask if anybody has experience with slow response of VLAN interface on L3 switch (3750-X)I have two pairs of 3750-X switches. Every pair is configured in stack. This two stacks are connected together via 2 TenGigabitEthernet port...

Jan Rolny by • Participant
  • 14169 Views
  • 9 replies
  • 0 Helpful votes

802.1x Authentication

Hi All, While enabling 802.1x authentication, can we have the access switch or the Router take the role of a Authentication (RADIUS) server? Can we add username and password onto the switch/Router, and have the users authenticate whenever they plugin...

QoS and data packet

Hi to all.I have a topology like:switch->ip phone->PCSwicth configuration is:Interface fa0/4  switchport voice vlan 10  mls qos trust cos  mls qos trust device cisco-phone  switchport priority extende cos 0In brief, based on my understood:- Voice wil...

Resolved! Lost default configuration

Hi, I have a Cisco 892 WLAN Router that was upgraded from IOS 12.x to IOS 15. I'm struggling getting the WLAN to work so I decided to reset the router to its default configuration. With the config-register 0x2102 method, I ended up with a config tha...

ADSL problem with 12.4(15)T12 on 877 router

I am starting this discussion because I don't have a service agreement with Cisco and I bought (as a private) an 877 with advanced ip services to connect from home through ADSL.The router works fine and I have a nice zone based firewall in place, but...

gnaloctor by • Beginner
  • 551 Views
  • 2 replies
  • 0 Helpful votes

routing between vlans not working right

Hi everyone. We recently had something happen to our multi switch and multi vlan network and don't know what what could be happening. I don't know how detailed I should get here but in general, we have a number of vlans that at one time could all com...

Toubleshooting ping output

I'm facing a performance issue when users trying to download files from the remote server. I have been trying to figure the cause of the performance issue:I have found strange output from the user Laptop. I have requested the user to the extended pin...

show vlan id xy - MTU

Hi everybody!I have a question to MTU sizes. I am using a 7606.For my understanding, there is the Layer 2 MTU and the Layer 3 MTU.I have configured the physical L2 Interface with a MTU size of 9216.And I have configured the logical L3 Interface with ...

About the stacking switches

Hi,It's a generic question.How the stacking for several switches can work?We have a master switch which have an addressing table (a forwarding table) and the other switches which can update this table.Can we suppose that the master addressing table i...

hostettle by • Beginner
  • 267 Views
  • 2 replies
  • 0 Helpful votes

Restrict IGMP Snooping Querier per VLAN

Hi all,I have a 4948 switch (IOS v. 12.2(50)SG), for simplicity my scenario is as follows:1) One VLAN with multicast, no queriers within the VLAN.2) A second VLAN, received via a trunk restricting only this VLAN.  Multicast routers available within t...

mariov652 by • Beginner
  • 673 Views
  • 1 replies
  • 0 Helpful votes

Extending Vlan to a different subnet

I need to extend a vlan from one subnet on a Catalyst 3560V2 to another subnet in a different location on a Catalyst 3560 and 2960.  The offices are connected via dedicated 10mb metro etherthernet connection.    What is the best way to do this. Thank...

Resolved! I unable to boot my router 1811

I have router 1811 unable to boot.System Bootstrap, Version 12.3(8r)YH8, RELEASE SOFTWARE (fc2)Technical Support: http://www.cisco.com/techsupportCopyright (c) 2006 by cisco Systems, Inc.C1800 platform with 131072 Kbytes of main memory with parity di...

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