Switching

Discuss Catalyst brand switches with peers and experts.
cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

Labels

Forum Posts

Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

Hi  Sh vtp status shows mode is client but the  Configuration Revision  : 0   It could be a password issue ? . On other switches  Conf .revision is  220 .But there are some vlan populated  but still Configuration Revision  : 0 . How can i solve witho...

susim by Level 3
  • 540 Views
  • 1 replies
  • 0 Helpful votes

Hello Everybody,Hoping someone can help me with this, if bpdu filter is applied on both ends of an ether channel trunk connecting stacked switches between two locations will stp still see the etherchannel as a single link ? will it result in loops ? ...

Hi,I have a 4510R+E with dual sup7-e. It's set up as SSO.I'm planning to upgrade IOS to the latest version, which is 3.3.1.151-1.SG1, using ISSU.One thing that bothers me is the config register is set to 0x2101.I've typed in 0x2102 but it says "Confi...

John Kim by Level 1
  • 3996 Views
  • 7 replies
  • 0 Helpful votes

Hi, we have a cisco 2801 router on our network and we are experiencing dropped packets when we have a CCTV system connected ,we have a 10mb line and about 50% of this is taken up when connected ,there are only four users in the office ,they experienc...

Antkane01 by Level 1
  • 815 Views
  • 5 replies
  • 0 Helpful votes

I connect console cable to the cisco6509.  the terminal receives the following log. what is the wrong with the switch? Dec 10 05:26:19.867: %IPC-SP-5-NULL: no tx_win_info dest port=0x10000, port index 0x0-Traceback= 404273EC 40427CBC 4042A3F4 4042AF4...

samuellv1 by Level 1
  • 434 Views
  • 1 replies
  • 0 Helpful votes

Catalyst 3560 with "no ip routing", ipservices image, c3560-ipservicesk9-mz.122-55.SE9.bin  mvr vlan 18 mvr mode dynamic mvr group 239.1.1.0 mvr group 239.1.1.1 mvr group 239.1.1.2 mvr ! interface FastEthernet0/1  switchport access vlan 116  switch...

Hi , I received many fe80.0000.0000 flapping on the switch. I can not find the mac fe80.0000.0000. Is it a normal mac address? How to resolve this problem? Dec 10 08:25:42: %SW_MATM-4-MACFLAP_NOTIF: Host fe80.0000.0000 in vlan 223 is flapping between...

samuellv1 by Level 1
  • 1440 Views
  • 3 replies
  • 0 Helpful votes

Hi, I have a Static NAT rule to allow ports 443 and 3389 in from public address for RDS enviroment.I'm able make a connection from the outside to inside but if i was to request the connection from inside to outside and back in, i get a page cannot be...

sslack031 by Level 1
  • 542 Views
  • 1 replies
  • 0 Helpful votes

Hi Everyone,  I recently had an instance in one of my networks where a user plugged in a home router to our network. The router then started handing out incorrect IP addresses to clients.  I know I can use DHCP Snooping or BPDU guard to stop this hap...

Dear All, After a bandwidth upgrade from 10 mpbs to 20 mbps, the interface keeps flapping intermittently on a nexus 5k switch. The switch is connected to 3750 located at another location. We could observe that cdp neighborship flap occurs only on the...