Switching

Hi network expert,I have some questions about DHCP relay. If you could help me...First, I wonder if DHCP relay relays all requests or just DHCP Discover and following requests with same ID. I mean if the DHCP client just ask to renew a previous lease...

I have broadband cable internet with Cablevision and using a Scientific Atlanta cable modem.  I want to connect this device to a router (2610) via ethernet only for my local LAN.  How do I configure the router for this?  Or can someone point me in th...

What is the CLI trying to tell me when it talks about EtherChannels with an 'A' or 'B' designator following them?  i.e. I understand 'Po41' ... but what are these 'Po41A' and 'Po42B' thingies?  It seems to be a way of representing multiple ports in a...

I have two identical switches - 4510 with sup v5.  The number of host that are served by each of them is nearly equal.One of them has more cpu usage then other. I troubleshot it with "High CPU Utilization on Cisco IOS Software-Based Catalyst 4500 Swi...

hi,  I have to make changes on some catalyst c2950 but when I want to save conf, I have this message?  #write Building configuration...  % Warning: Saving this config to nvram may corrupt any network management or security files stored at the end of ...

Hi all,In my office i have started creating vlans using cisco catalyst 4948 switch.Each floor is divided into vlans. On cisco catalyst 4948 i have created trunk ports which connects to other switches on each floor.vlan1 ---> 1st floorvlan2 ---> 2nd f...

Hello all,I'm new to Cisco and I need some help to configure the following scenario (probably too simple, but I have no experience sorry).We inherited one Cisco 2960G (7 port), and one Cisco 3560G (24port).Our configuration is as follows:WAN router ...

I am trying to create subinterfaces on a 3560 switch on gi0/1 interface..Can some please help? thank you !!!current ios is flash:c3560-advipservicesk9-mz.122-44.SE2.bin"I want to be able to create the following:interface GigabitEthernet0/1.20interfac...

Is it possible to enable ERSPAN on cat 4506 switch ?ThanksRichard

HiI am getting the followoing loggs and my router is rebooting;"*** System received a Software forced crash ***signal= 0x17, code= 0x1500, context= 0xce08d8cPC = 0x827412c, Vector = 0x1500, SP = 0x10f23308System Bootstrap, Version 12.2(33r)SRD5, RELE...

HelloWhy the following msgs appears?I have normal access ports with different vlan on the same switch as i dont have any trunk link with 802.1Q encaps?*Mar  1 00:46:28.515: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet1...

Greeting, we need help and  documents for hardware and software requirements for configuring vss with dual supervisor per boxRegards