Switching

Hi all, can anyone explain why the "blue" ports are blocked and not any of the "red" ports? the rule "the switch with the higher bridge id will end up blocking its side of the connection" doesn't seem to apply here. Regards.

Hello, I want to know which is the best choice for spanning-tree in this design. We have a HP ProCurve Switch 5406zl as the root and fiber uplinks from it to 5 Cisco CE500 or 2960 switches. The CE500 switches have the following choices: mst - Multipl...

Good morning, That benefit me use wildcard when publishing networks in EIGRP. -router EIGRP (ASN) -network 10.0.0.0 0.0.0.255 our -router EIGRP (ASN) -network 10.0.0.0 255.255.255.0 Thanks in advance.

I have switch 2 and switch 3, I found in the system we have vlan 23, 211, 209 and assign ip address. but all my access ports are using vlan 211,209, trunk port are not using vlan. so my question is how can vlan 23 be used? also my switch 2 and swit...

I'm confused about an aspect of STP. If a single port is plugged in from one switch to another, can that cause a loop/issues on a network? I've searched, but haven't been able to find a solid answer. Thanks in advance.

why in ether channel the load balancing is per flow not per packet?

Good Morning all, I have a TAC case opened for this right now but I thought I would share it as TAC at this point aren't able to resolve it.I cannot issue the write memory or copy run start command on my 4500X VSSPRD-SWCR01#wrstartup-config file open...

Hello everyone...! i have Cisco 3750G switch and my requirements are: Requirement: Need to create two vlan's with different network gateways i.e vlan1 should allow the traffic from 192.168.1.1 and vlan2 should allow the traffic from 172.168.1.1 i ...

Hi all, ich have two Access Switches - WS-C2960S-48TS-L 12.2(55)SE10, since some days i see high CPU. These ar the Log entries:.Oct 10 09:22:04.366: IP ARP: rcvd req src 172.18.12.214 9890.9699.5401, dst 172.18.1.50 Vlan1.Oct 10 09:22:04.366: IP ARP:...

Hello. Our team has provided a technical support for WS-C6513-E device for a client. During a security audit, the client issued a IOS patch regarding "Cisco IOS Port ACL Bypass Vulnerability" This vulnerability (bug id : CSCuy64806) affects IOS 12....

Hi guys, We have 2 routers 2921 with the same ios, version ... one with FCZ181360N8 serial number and other FCZ181360N4. Last day we had a problem with one of them when they lose electricity power. And only the router with S/N FCZ181360N8 lost the ...