Switching

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 ...

Hi,We have a stack of 2 switches running version 3.06.02aE using install mode.  When we added an additional switch onto the stack the the 2 switches on the stack started to reboot.sh log has the following message000557: Oct  5 13:01:58.628 AEDT: %IDB...

sir, I have two Cisco switch and its connected point to point connectivity through Radio Frequency devices now im trying to create a vlan into point to point ?? 

hi all, we have currently PSTN -> E1R2 2901 -> H323 line PBX -> phone. config is working both ways. only issue i have is when the PBX receives the call from the 2901 voice gateway, it receives the ANI/caller ID but with the Cisco Systems Inc after th...

Hi all, I don't know if the question seems a bit dumb.. I am looking at certain segments in my network where it is quite flat and require no extra features or management to use an unmanaged switch. I am looking at Cisco SB SG102-24 but I can't find...