10-14-2009 11:07 PM - edited 03-06-2019 08:08 AM
Server with 4NIC needs to connect to L3switch as a single pipe for redundancy and high throughput
Server has a teaming software to combine all these interfaces as one.
What config is required on Switch.
Currently the server is connected with one NIC to switch
Server IP : 192.168.1.10/24
Switch : giga 0/21
switchport mode access
switchport access vlan 9
speed 1000
Solved! Go to Solution.
10-15-2009 11:36 PM
Hello Amin,
to build a L2 etherchannel that is not a L2 trunk
int giga0/5
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/6
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/10
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/11
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int po5
no shut
! this can be needed on some switch
! platforms for example C6500
to avoid problems with starting up the member links one possible solution is to start with all member links shut
and then to use interface range to make an unshut in sync.
interface range gibabitethernet 0/5 - 6, 0/10 - 11
no shut
! pay attentions to spaces that are required
! or interface range is not accepted
then depending on platform you may need to unshut the bundle interface po5 in this example.
Do this when server NICs are configured to use LACP
Hope to help
Giuseppe
10-14-2009 11:15 PM
Hi,
You can use etherchanneling on the switch ports.
i.e.
interface port-channel1
switchport mode access
switchport access vlan 9
spanning-tree portfast
interface range g0/21-24
channel group 1 mode active
switchport mode access
switchport access vlan 9
spanning-tree portfast
10-14-2009 11:24 PM
Hello Amin,
if all 4 NICs are active that is it is an active/active teaming you can only use an etherchannel bundle.
I recommend to use LACP IEEE 802.1ad on the switch side you prepare all the 4 NICs like the one already connected
int gi x/y
switchport
switchport mode access
switchport access vlan 9
speed 1000
duplex full
to setup an LACP bundle add to each interface:
channel-group x mode active
x is a number of an unused bundle.
for example x= 5
you may need also
int po5
no shut
you can check current etherchannels with
show etherchannel summmary
the server NICs have to be configured for LACP to send LACP messages on each port.
if the switch port fails to hear LACP message for some time (90 seconds) the port is removed from bundle.
This provides control of what is happening and has to be preferred to unconditionally bundling (channel-group y mode on)
refer to server documentation on how to setup an LACP bundle.
we are using this for all new servers.
Hope to help
Giuseppe
10-15-2009 12:49 PM
Hi Giuseppe,
I didnt understand the Etherchannel configuration.
Assume Server 4NIC interface on Switch are connected to switch ports
giga0/5
giga0/6
giga0/10
giga0/11
what config needed on these interfaces.
10-15-2009 11:36 PM
Hello Amin,
to build a L2 etherchannel that is not a L2 trunk
int giga0/5
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/6
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/10
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int giga0/11
switchport
switchport mode access
switchport access vlan 9
channe-group 5 mode active
speed 1000
duplex full
int po5
no shut
! this can be needed on some switch
! platforms for example C6500
to avoid problems with starting up the member links one possible solution is to start with all member links shut
and then to use interface range to make an unshut in sync.
interface range gibabitethernet 0/5 - 6, 0/10 - 11
no shut
! pay attentions to spaces that are required
! or interface range is not accepted
then depending on platform you may need to unshut the bundle interface po5 in this example.
Do this when server NICs are configured to use LACP
Hope to help
Giuseppe
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