Dell PowerConnect 6248 Switch

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Get access to the switch by going through sgehead.bkslab.org:

[s_bwong1@gimel ~]$ ssh bwong1@sgehead.bkslab.org
bwong1@sgehead.bkslab.org's password: 
Last login: Wed Nov  2 15:39:28 2016 from gimel.compbio.ucsf.edu
Could not chdir to home directory /raid1/people/bwong1: No such file or directory

-bash-3.2$ telnet switch-2-1
Trying 10.0.2.10...
Connected to switch-2-1.c.bkslab.org (10.0.2.10).
Escape character is '^]'.                 
User:admin Password:********* switch-2-1>

Enabling privilege mode and configuration mode: 1) Enable privilege mode

switch-2-1>enable
Password:*********          (same cluster0formula)

2) Enter configuration mode

switch-2-1#config

Backing up the current configuration of PCT6248

If the PCT6248 reboots, it will lose it's current configuration if the startup-config is different from the running-config. To backup your current configuration so that it has the same configuration after a reboot, you must do this command in privilege mode:

switch-2-1#copy running-config startup-config


Configuring The PCT6248

Getting IP information on switch

1) Enter configuration mode. 2) use command: show ip interface
switch-2-1#show ip interface

Management Interface: 
IP Address..................................... 10.0.2.10 Subnet Mask.................................... 255.255.0.0 Default Gateway................................ 0.0.0.0 Burned In MAC Address.......................... 0021.9BAF.E4BE Network Configuration Protocol Current......... None Management VLAN ID............................. 101

Enabling PortFast on a port

PortFast allows a port to enter into forwarding state immediately (instead of having the port listen and learn first) 1) To enable a port for PortFast, first enter privilege mode and configuration mode. Then select an ethernet port as your primary interface with the command: interface ethernet <port-number>.

switch-2-1(config)#interface ethernet 1/g12

2) Use the command: spanning-tree portfast to enable portfast on a port.

switch-2-1(config-if-1/g12)#spanning-tree portfast 

3) Also, you may configure the VLAN when interface is in a specific mode with the command: switchport access vlan <vlan-number>. Here, I am configuring the VLAN 200 (cluster2 VLAN for this switch) to be active in access mode.

switch-2-1(config-if-1/g12)#switchport access vlan 200

VLANs

To create a new vlan:

1) Enter privilege mode, then configuration mode, and finally enter vlan mode

switch-2-1(config)#vlan database

4) Create a vlan with command "vlan <number of new vlan>"

switch-2-1(config-vlan)#vlan 5
Warning: The use of large numbers of VLANs or interfaces may cause significant 
delays in applying the configuration.

5) Exit back to switch's privilege mode menu (you're in privilege mode if you see a '#' in your prompt) and use "show vlan" to see entire list of current vlans. New vlan will show up.

switch-2-1#show vlan 
VLAN       Name                         Ports          Type      Authorization
-----  ---------------                  -------------  -----     -------------
1      Default                          ch7-24,        Default   Required     
                                       1/g15-1/g18,
                                       1/g39-1/g40,
                                       1/g45-1/g47,
                                       1/xg1-1/xg4
5                                                      Static    Required     
100    26 subnet                        ch1-6,1/g2,    Static    Required     
                                       1/g12,
                                       1/g25-1/g34,
                                       1/g37-1/g38
101    BKS cluster                      ch1-3,ch5-6,   Static    Required     
                                       1/g1,
                                       1/g3-1/g11,
                                       1/g13-1/g14,
                                       1/g19-1/g20,
                                       1/g23-1/g24,
                                       1/g35-1/g36
102    QB3 PI Zone                      ch1,ch3        Static    Required
200    BKS cluster2                                    Static    Required

To delete a vlan:

1) Enter privilege mode, then configure mode, and finally vlan mode (steps above) 2) Use command "no vlan <number of vlan to be deleted>

switch-2-1(config-vlan)#no vlan 5
Warning: The use of large numbers of VLANs or interfaces may cause significant
delays in applying the configuration.

3) Exit back to default menu and see that vlan has been deleted (in this case, vlan 5)

switch-2-1#show vlan 
VLAN       Name                         Ports          Type      Authorization
-----  ---------------                  -------------  -----     -------------
1      Default                          ch7-24,        Default   Required     
                                       1/g15-1/g18,
                                       1/g39-1/g40,
                                       1/g45-1/g47,
                                       1/xg1-1/xg4
100    26 subnet                        ch1-6,1/g2,    Static    Required     
                                       1/g12,
                                       1/g25-1/g34,
                                       1/g37-1/g38
101    BKS cluster                      ch1-3,ch5-6,   Static    Required     
                                       1/g1,
                                       1/g3-1/g11,
                                       1/g13-1/g14,
                                       1/g19-1/g20,
                                       1/g23-1/g24,
                                       1/g35-1/g36
102    QB3 PI Zone                      ch1,ch3        Static    Required
200    BKS cluster2                                    Static    Required

Assigning Ports to a VLAN

1) Enter privilege mode with enable command. Then enter configuration mode. Next, use the interface ethernet <port-number> command to select a port for configuration.

switch-2-1(config)#interface ethernet 1/g12

Your prompt should now contain the selected port.

switch-2-1(config-if-1/g12)#

2) Add your port to the your selected vlan with command: switchport <mode> [add (this section not necessary depending on mode)] vlan <vlan number>

switch-2-1(config-if-1/g12)#switchport access vlan 200                            
Warning: The use of large numbers of VLANs or interfaces may cause significant
delays in applying the configuration.

Configuring IP Parameters for a VLAN

Once you have created a VLAN, you may associate an IP address and a subnet mask for a VLAN. Below, I am assigning an IP address to my VLAN, BKS cluster2. 1) Enter privilege mode > configuration mode. Next, do interface vlan <VLAN id>.

# 200 corresponds to my VLAN BKS cluster2.  
switch-2-1(config)#interface vlan 200

You will now see a prompt showing that you are configuring vlan200:

switch-2-1(config-if-vlan200)#

2) Since our configuration mode is now linked to interface vlan200, any commands now will affect vlan200. Now we will assign the ip address with the command: ip address <desired address> <desired subnet mask>:

switch-2-1(config-if-vlan200)#ip address 10.20.2.254 255.255.0.0

After that, the vlan 200, BKS cluster2, is now assigned the static ip address of 10.20.2.254.