03-19-2008 05:49 AM - edited 03-03-2019 09:12 PM
Hi,
How can i directly connect my servers to L3 switch by not having a seperate l2 switch, So can i configure l2 vlans also on the l3 switch .
Basically i want my seevers connected to L3 switch ----then it goes to a Wan router.
Please let me know what steps i need to take care for this activity.
Rgds,
Akber.
03-19-2008 05:54 AM
Akber
A L3 switch still has L2 vlans on it. So you create the vlans as you would on a L2 switch, allocate ports into those vlans and connect your servers up.
If you then need those servers to be able to reach remote networks then you simply create L3 SVI's for the vlans ie.
interface vlan 10
ip address 192.168.5.1 255.255.255.0
HTH
Jon
03-19-2008 07:15 AM
Jon
I have 10 severs , which i would direcly connecting to L3 switch ( Avoiding L2 switch expenses) . So the basic idea would be to create a l2 vlan and assign all the server ports under that vlan on a L3 switch . From now how this l2 vlan pass trafiice to the next device ( which is a Wan Router) . Does it require any configs more on the L3 switch .
Appreciate your valuable response!
Rgds,
Akber.
03-19-2008 08:04 AM
Akber
Letes say you use vlan 10. You create the L2 vlan 10 and assign ports into that vlan.
Then on the L3 switch
switch(config)# int vlan 10
switch(config-if)# ip address 192.168.5.1 255.255.255.0
Assign your server addresses out of the 192.168.5.x subnet and set the default-gateway to 192.168.5.1.
Do you have connectivity already between the L3 switch and the router ?
Jon
03-19-2008 10:07 AM
Excellent as you are ! Thanks Jon.
Rgds,
Akber.
03-19-2008 09:33 AM
One thing to make clear if you didn't realize this, a Layer 3 switch is a Layer 2 switch with added capabilities. A layer 3 switch can be run as a layer 2 switch, or a combination thereof.
You just configure the layer 2 ports exactly the same as you would on any layer 2 switch. Once you have the layer 2 ports configured, you can then add an IP address to the vlan interface so that it can then also act as the gateway to the devices on that VLAN.
03-19-2008 10:24 AM
Hi,
Suppose i want to connect my 10 servers to two L3 switches for Redundancy purpose. Can i use HSRP/etherchanneling,then how do i proceed with the configuration.
Rgds,
Akber.
03-19-2008 01:54 PM
Akber
Yes you can do this. If you want redundancy on your servers you can run NIC teaming which means one of the NIC's is active and forwarding data and the other NIC is in standby.
You connect one NIC to a port on Switch1 (sw1) and the other NIC to a port on Switch2 (sw2).
Then using the same example as before
sw1
int vlan 10
ip address 192.168.5.2 255.255.255.0
standby 10 ip 192.168.5.1
standby 10 auth cisco
standby 10 preempt
standby 10 priority 110
sw2
int vlan 10
ip address 192.168.5.3 255.255.255.0
standby 10 ip 192.168.5.1
standby 10 auth cisco
standby 10 priority 100
Then you connect the 2 switches together with a fibre/UTP cable and on the port on each switch that this cable connects to
int fa0/24
switchport trunk encapsulation dot1q
switchport mode trunk
As before you give the servers IP addresses from the 192.168.5.x subnet and the default-gateway is 192.168.5.1
HTH
Jon
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