Switching

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Hi,One of my customers had an incident that the flashs of the core switch, HQ WAN router and all the branches' routers were formatted and the images were deleted at the same day!We are restoring his network and investigating into the situation. The c...

Hello,I have a question about the design guide on LAN with the root guard.In my example, I have 2 Core switch : Core A and Core B. Core A is root bridge for vlan 1 to 10 and Core B is root bridge for vlan from 11 to 20.I have only one distribution sw...

Hi Guys,I have a 2948g-ge-tx switch. It says the supervisor module has failed. I dont have physical access to the switch and form the web I found out that it is a fixed configuraiton switch. show moduleMod Slot Ports Module-Type Model ...

Hi,trying to set up Qos on a 2960. What i want to do : Tagging port Fa0/4 to Cos 5I've done this with 2950 EI but it doesn't work witch 2960Here's my configurationmls qos map cos-dscp 0 8 16 24 32 46 48 56mls qosinterface FastEthernet0/4 description ...

gbusson by Level 1
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  • 20 replies
  • 0 Helpful votes

Resolved! 3750 stacked

I have an exsisting 3750 and will be adding a second via the stack cable. I realize that they need to run the same code. I should power them off, hook them up, then boot them. I also realize that the interfaces will change IE from fa 1/0 to fa 1/0/1 ...

mikegrous by Level 3
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  • 3 replies
  • 0 Helpful votes

Hi,What is the behavior a PVST environment when a router "sub-interface" configured with a particular VLAN is shutdown/brought up. The router connects to a c2950 dot1Q trunk port configured for few VLANs.When there's a change of the physical interfac...

RanilG by Level 3
  • 1184 Views
  • 3 replies
  • 0 Helpful votes

Hello sifus,I would to get some info for overutilised trunk connection.wondering what could be the root cause for it.I am seeing multiple frame drops as well.Other trunks for this dist switch with same configs are running fine wihtout no problems.Cab...

we have a numbers of swtich and want to set with same vlan domain. Question is some model of C2924-XL vlans number maximum VLANs supported locally : 68,while other 3524 switch have maximux vlans 254.I worry when I form the vlan domain that will crash...

dien9 by Level 1
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  • 5 replies
  • 0 Helpful votes

Hi there,I've read a fair bit about flow control and although on the surface it seems quite obvious it is actually anything but that. I've got a 6500 switch which has 3 Exchange servers connected to 3 of its GigabitEthernet ports. I've set the swit...

I am trying to configure a 837 router to connect to an ADSL circuit (PPPoA) with a PIX 515e behind it. I have been given a 5 public IP address to enable this.I just want the 837 to provide ADSL connectivity, with all access (NATing, IP Sec etc) done...