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Hi Everyone, I have an issue with ERSPAN on my Catalyst 9300-24T switches. IOS XE version is 16.12.4. They are directly interconnected on 10.10.10.4/30 subnet. The source has ip address 10.10.10.5 and destination has ip address 10.10.10.6. This is co...

Hi All,I have two WS-C3850-48T with CAT3K_CAA-UNIVERSALK9 16.3.5b  would like to know if i can synchronizing the configurations of one switch to the second one, when even i make a change in the first one, similar when we are having HA ASAs  

giridar by Level 1
  • 680 Views
  • 4 replies
  • 0 Helpful votes

Hi, We are testing an ASR920 in our lab and noticed that multicast is not working as expected. When we create a network with 3 switches (c2960) with mostly default settings evertything works fine.unicast form host A-B: okbroadcast from host A-B: okmu...

multicast setup1.png multicast setup2.png
wipo by Level 1
  • 1371 Views
  • 4 replies
  • 0 Helpful votes

I'm using one of my SG350 switches as a WAN switch where 2 of the ISPs terminate in my switch in 2 SFP ports.I'm using this switch only as L2 where i am getting uplinks for the ISPs and giving down links to a pair of Juniper firewalls in HA mode.I on...

jayadev13 by Level 1
  • 1231 Views
  • 4 replies
  • 5 Helpful votes

Hello, Usually mac address of PC can be left at switch port after the PC send some message to switch. But here is a little unusual. Here is a diagram, but not exactly: SW1 ----SW2----SW3----SW4---SW5(or more).... ---PCThere are a lot switches between...

eigrpy by Level 4
  • 1613 Views
  • 2 replies
  • 0 Helpful votes

Hi, I have a 3750 switch and three 2960 switches and a Kerio firewall.IP range of 2960 switches: 10.10.31.0/24, 10.10.32.0/24, 10.10.41.0/24DMZ IP Range: 10.10.10.0/24LAN IP Range: 10.10.12.0/24WAN IP Range: 180.140.32.0/24IP Kerio: 10.10.10.2Compute...

HelloI have one switch 3750 and three switches 2960 with IP range 10.10.60.0 / 24 and the clients are connected to 2960 and 2960 is to 3750 trunk. I also want a 3750 port for a dmz hand with an IP range of 10.10.10.0/24 and a port for a lan hand with...

Resolved! Dhcp not working

I have a problem. I cant get a dhcp address on PC-B. When I write "interface Vlan30" "ip address dhcp" "no shutdown".(on both switches) Then do a "show run" instead of "ip address dhcp" it stands "no ip address" on both switches. And I don't understa...

joal by Level 1
  • 1442 Views
  • 7 replies
  • 0 Helpful votes

Hello team,I have a problem with the Cisco guides and releases for hte upgrade procedure (ISSU) for 9500 from 16.9.3 to 16.9.6. It is a stackwise virtual cluster and I see following info: In this guide :https://www.cisco.com/c/en/us/support/docs/swit...

M1LEN_0-1613573094006.jpeg M1LEN_1-1613573094017.jpeg
M1LEN by Level 1
  • 1496 Views
  • 2 replies
  • 0 Helpful votes