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vxlan irb interface increases the traffic latency on QFX5110

This thread has been viewed 11 times

  • 1.  vxlan irb interface increases the traffic latency on QFX5110

    Posted 7 days ago
    I have the following topology
    Without IRB configured, the latency between Host-1 and Host-2 is below 1 ms via vlxan.
    As QFX5110 does not support irb interface in the global routing instance (inet.0), I did the following way
    set interfaces irb unit 1140 virtual-gateway-accept-data
set interfaces irb unit 1140 family inet address 10.67.254.30/27 virtual-gateway-address 10.67.254.1

set interfaces lo0 unit 1 family inet address 10.68.191.235/32

set routing-instances EVPN-1 instance-type vrf
set routing-instances EVPN-1 interface irb.1140
set routing-instances EVPN-1 interface lo0.1
set routing-instances EVPN-1 route-distinguisher 10.68.191.235:1
set routing-instances EVPN-1 vrf-target target:65534:65534
set routing-instances EVPN-1 routing-options interface-routes rib-group inet to.inet0
set routing-instances EVPN-1 routing-options static route 0.0.0.0/0 next-table inet.0

set routing-options rib-groups to.inet0 import-rib EVPN-1.inet.0
set routing-options rib-groups to.inet0 import-rib inet.0
​

    With the above configuration, Host-3 can reach both host-1 and host-2, but the latency jumps to about 5 ms, even the latency between host-1 and host-2 also jumps to about 5 ms.
    The worse thing is when I added additional irb interfaces, the latency spikes  to 700 ms.

    Anyone has clues and insights on this.

    I do have a case for Juniper.

    thanks so much !!



  • 2.  RE: vxlan irb interface increases the traffic latency on QFX5110

    Posted 5 days ago
    Anyone has any inputs related the routes leaking between VRFs  and the Global?   OK or Bad ?
    Original Message