Single-level M-LAG + VRRP

Created: Dec 13, 2018 10:33:47Latest reply: Dec 18, 2018 11:10:34 222 3 10 0

Single-level M-LAG

A server is often connected to a network through link aggregation. If the device connected to the server fails, services are interrupted. To prevent this problem, a server can connect to a network through M-LAG. That is, deploy M-LAG between SW1 and SW2 and connect the server to SW1 and SW2. SW1 and SW2 load balance traffic. When one device fails, traffic can be rapidly switched to the other device to ensure nonstop service transmission.

The virtual ip will be work as the gateway of the server.

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Single-level M-LAG + VRRP configuration example (CE68 as example)

  SW1:

stp mode rstp

 stp v-stp enable

#

ip vpn-instance management  

 ipv4-family

 route-distinguisher 100:1

 vpn-target 111:1 both

#

interface Meth 0/0/0

ip binding vpn-instance management

ip address x.x.x.x x

#

dfs-group 1

 source ip x.x.x.x  //ip of the meth0/0/0

 priority 150

#

interface eth-trunk 1  //connect to SW2

 trunkport 10ge x/0/a to x/0/b

 mode lacp-static

 peer-link 1

#

vlan batch x  //service vlan

#

interface eth-trunk 2  //connect to server

 mode lacp-static

 port link-type trunk

 port trunk allow-pass vlan x

 trunkport 10ge x/0/x

 dfs-group 1 m-lag 1

#

interface vlanif x

 ip address x.x.x.2 x

 vrrp vrid 1 virtual-ip x.x.x.1

#

 commit

SW2:

 stp v-stp enable

#

ip vpn-instance management  

 ipv4-family

 route-distinguisher 100:1

 vpn-target 111:1 both

#

interface Meth 0/0/0

ip binding vpn-instance management

ip address x.x.x.x x

#

dfs-group 1

 source ip x.x.x.x  //ip of meth0/0/0

 priority 120

#

interface eth-trunk 1 //connect to SW1

 trunkport 10ge x/0/a to x/0/b

 mode lacp-static

 peer-link 1

#

vlan batch x  //service vlan

#

interface eth-trunk 2

 mode lacp-static

 port link-type trunk

 port trunk allow-pass vlan x

 trunkport 10ge x/0/x

 dfs-group 1 m-lag 1

#

interface vlanif x

 ip address x.x.x.3 x

 vrrp vrid 1 virtual-ip x.x.x.1

#

commit


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Finn92  Visitor   Created Dec 14, 2018 16:03:32 Helpful(0) Helpful(0)

hello author , thank you for your sharing .
it's good for us understand M-lag .
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yiyi0519  Visitor   Created Dec 17, 2018 17:13:10 Helpful(0) Helpful(0)

this solution is very useful for the data center deployment
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sim_157     Created Dec 18, 2018 11:10:34 Helpful(0) Helpful(0)

I rembered that you have posted a thread about multi-level M-LAG + VRRP, could you please introduce the difference between them.
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