Integrate existing network SG200

We have an existing network with a main catalyst switch 4510 and 3560 departmental switches are connected via fiber. Due to the restructuring of the company we can no longer buy us some new 3560's, when something goes wrong, so this week I bought a SG200-26 which I am trying to get on the network.

It is a legacy network that does not set up so my Cisco skills are somewhat limited (another reason for the if SG200 fine), in any case have been watching the configs on the existing switches and trying of correspond to the settings in the configuration SG200 however do not do anywhere! I have the config of the dead switch so I can show what needs to be done, I was wondering if anyone has experience in the degradation of their environment in a similar way and if there was someone who could help?

Peter, the good thing is, it seems that the config is fairly consistent with the SX200. It doesn't look like you guys made anything too special about the 3560.

Here is a snippit of your config

interface FastEthernet0/18

Phone nortel Description

switchport access vlan 32

switchport trunk encapsulation dot1q

switchport trunk vlan native 32

switchport trunk allowed vlan 16.32

switchport mode trunk

spanning tree portfast trunk

spanning tree enable bpduguard

This particular port config looks like she embodies most of your work that you have cut out for you.

I use Microsoft device emulator for example

https://www.Cisco.com/assets/Sol/SB/Nikola_GUI/SG_200-50P_v1_1/config/home_sx200.htm

  • Connect to the switch IP address
  • Browse VLAN MANAGEMENT-> create a VLAN
  • Create the necessary VLAN ID, it looks like you have a certain 16, 32, 64, 254,
  • Once VLANS are created them navigate VLAN MANAGEMENT-> Port Vlan Membership
  • Choose the port on which you want to configure, in the example snippit 18 port, click the port 18 radio button then scroll down and click on JOIN VLAN
  • This will open a new window, on your 18 port config looks like vlan 32 originated. The only command I noticed is there is "allowed vlan 32" essentially what actually a port marked for the vlan native. On the right column where it says 1up, select this option and then use the arrow to the left to slide on
  • Then on the left panel to choose 32, below where it says that marking, labeled and trying to make it is the PVID also choose 16, select the tag ensure 16 is not defined as a PVID then and apply this
  • The port should read 16 t, 32tp
  • To configure the setting of tree cover for this example navigate SPANNING TREE-> parameter of the interface of STP
  • Choose the port 18 then scroll down and click on change
  • Spanning port fast shaft comes in the terminology as edge port, change the port from edge of the car to allow
  • Then change the bpdu filtering handling (it's about the same as the bpdu guard)
  • Apply the settings

That's all what you can associate up to based off this port config. The switch does not have a so the closest bpdu guard, you can do is to filter bpdu. Globally configured BPDU Guard is designed to disable (disable-err) all ports enabled portfast should they ever receive BPDU frames. While preventing the switch to send BPDU frames on ports that are enabled with the portfast BPDU filter.

It also appears on the config of your vlan 1 is inactive and your vlan 254 is the vlan management. If this is the case, you can change the vlan by default of the switch to 254.

Don't forget to save the running configuration to the startup configuration.

I hope that's enough "translation." Let me know if you have any other questions.

-Tom
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Tags: Cisco Support

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