Switching

Hello everyone,We need your help to solve a network connection issue.We need to connect multiple networks through three or four cisco 3560, 3750 switches.I configured two 3750 stack switches with trunking on all Gig fiber ports and one on gi1/0/48 - ...

We currently have two 5548UP and  two 2232PP switches running on  5.1(3)N2(1a)  and the plan is to connect our old 3560G switches to 2232 PP using enhanced Vpc.I enabled spanning tree bpdufilter on the 2232 PP ports so that we can connect switches to...

Infrastructure:We have a pair of NEXUS 7010, version 6.0(2), in a hybrid enviroment, connect to VPC and non-VPC access switches.We use VTP version 2, I have checked carefully on every switches , they run the same version, same domain with same passwo...

Hi,What is the difference between  sdm prefer access & sdm prefer default & sdm prefer lanbase-routing? When do we use these options?   

Hello,Our organization currently has a Cisco 4507 acting as our core switch and 2 ASA525 firewalls. Our existing ISP runs into our 4507. Here is the port config. interface GigabitEthernet7/1 description ISP-DSL switchport access vlan 10 speed 100 dup...

                   hi,I have this 4507 chassis, SUP 6L-E. it has two twin giog ports an di had trie dto configure these as 1 gig interfaces to be used as i gig uplinks. after inserting teh commands I found in a Cisco paper, I see that only ports 5 & ...

Hi,            I've configured an IP SLA and Event Manager to bring up a backup interface when the primary goes down. I have a ping to 4.2.2.2 for the IP SLA and when I shut the primary interface which, has a DMVPN to the Main site, the Event Manager...

SFP-10G-ER are not supported on Catalyst 3750-X and on other switches .... %PHY-4-SFP_NOT_SUPPORTED: The SFP in Gi1/1/1 is not supportedWhy ?When will ER be supported ?thx.

HiPlease could someone advise me on the following. Any response will be greatly appreciated!I have 14 switches Layer 2, and 1 Layer 3 core.The setup is pc - phone - switch on one cable. 2 subnets for Users                               10.1.1.0/24 vl...

Hi,I have a N5K giving the folowing syslog error messages:%SYSLOG-3-SYSTEM_MSG: Syslog could not be send to server (logserver ip address). No such file or directorSyslog is enabled/configured by simply using the "logg server x.x.x.x" command, but no ...

hi guys,my ASA 5505 just woke up one day and didnt allow me to login to it with ASDM. i can console in though but telnet, ssh and asdm will not work. it just times out. please help!

I can't believe I am asking this, but I must be missing something. Setting up an 1811 in a lab environment (no WAN connection). Very basic configuration, but cannot seem to get DHCP working for phones. This device is standalone right now with no othe...

Hello As per my understanding, Cisco Nexus 2232 can only connect to HP c7000 Chassis if we are using a Pass Through Switch in the HP c7000. Cisco Nexus 2232 can only connect to End Hosts and not to a switch. Is there a New Feature added in Nexus 2232...