Switching

hello guys,I'm not sure about cisco871 and his FastEthernet4 interface .I have connection to ISP1, fa4 is used as outside interface. LAN is connected using fa0 (trunk for 3 networks inside LAN, vlan routing on c871). this design is clear and working ...

Hi All, I'm having a strange issue, I have some OSPF neighbor ships that are going down. When I look into the loggs I’m seeing: Sep 15 19:00:45: %OSPF-5-ADJCHG: Process 10, Nbr 172.18.164.20 on Vlan104 from FULL to DOWN, Neighbor Down: Too many retr...

Hi ,i have backup route in eigrp topology , how much time eigrp will take to make it active when primary route disappeare.Is it 2 second , any cisco document for it ?

I've 3560G switch connected to 3com switch via multi mode fiber, the SFP is SX in both of them, the connection between them is Ok but Suddenly I lost the connection and Cisco switch gives me that A duplex mismatch was found on this link although they...

Hello friends, can you please tell me that why we require need to track only to ethernet or fast ethernet interfaces and no need to track serial interfaces?when the link goes down, ethernet/fast showing ports status as up up and when serial interface...

Hi,I got 14 Secondary switches C2960 configured with a dot1x and aaa Radius, all authentication happend trought the radius.My core switch C3750G is connected to all C2960 switches, to the Router and to My ISA/Proxy server.I have a Guest_VLAN on all S...

What is the purpose of having VLAN 666 (This is a VLAN that does not have an ip address) being used for Vacant and Unused ports?  Why not just shutdown the ports that are not being used?I was received a recommendation from a CCIE consultant to use VL...

Sorry, I have three Switches 3COM 4228G with 24 porte + 2 Gb + 2 Slot( SFP)with this code (3C17304) . I need to buy CISCO CATALYST 3750 EMI PS -E. I need to link every 3COM switch to this catalyst with three different multimodal fiber channel link. ...

Hi,I have a need to change the next-hop address of all traffic entering interface A AND (leaving interface B OR has a next hop of X)e.g.Normally All traffic going out of interface Fa2/0 has next-hop of 10.0.0.2I want traffic that has entered the rout...

I am looking for CCIE R&S training camp for foundation labs located in London but couldn't able to find it if someone knew a good place please advice.

Case study: I am seeking help as I am attempting to test the .1Q functionality of Microsoft Virtual PC (only). What I have done is connected a PC w 1gig NIC configured for .1Q tagging and connected it to a Cat 3750 trunk port. I configured 3 VLAN (on...