This article explains the behavior of storm control seen on Aggregate Ethernet interfaces (AE) with the below configuration.
storm-control {
action-shutdown;
interface all {
level 30;
no-multicast;
}
}
It will also explain the behavior when Storm-control config is explicitly applied to AE interfaces.
storm-control {
action-shutdown;
interface all {
level 30;
no-multicast;
}
interface qf1-rsng1:ae10.0 {
level 50;
no-multicast;
}
AE10 interface becomes disabled on RSNG1 (QFX5100) due to storm-control even if the threshold, i.e. 30% of AE10 = 6Gig is not crossed.
Storm-control config is applied on "interface all":
storm-control {
action-shutdown;
interface all {
level 30;
no-multicast;
}
}
user@device> show lacp interfaces ae10
Aggregated interface: ae10
LACP state: Role Exp Def Dist Col Syn Aggr Timeout Activity
xe-0/0/15 Actor No Yes No No No Yes Slow Active
xe-0/0/15 Partner No Yes No No No Yes Fast Passive
xe-1/0/0 Actor No Yes No No No Yes Slow Active
xe-1/0/0 Partner No Yes No No No Yes Fast Passive
LACP protocol: Receive State Transmit State Mux State
xe-0/0/15 Port disabled No periodic Detached
xe-1/0/0 Port disabled No periodic Detached
Log messages:
2020-03-18T11:37:48.694Z qf1-rsng1 eswd 26768 ESWD_ST_CTL_ERROR_IN_EFFECT - ae10.0: storm control in effect on the port
2020-03-18T11:37:48.694Z qf1-rsng1 eswd 26768 ESWD_ST_CTL_ERROR_DISABLED - ae10.0: storm control disabled port
{MASTER}
user@device>
storm-control {
action-shutdown;
interface all {
level 30;
no-multicast;
}
}
As per the above config, whenever the broadcast and/or unknown unicast traffic exceeds the threshold of 30% BW on any child member interface of AE10 (xe-0/0/15 or xe-1/0/0) i.e. = 3Gig, the AE interface gets disabled along with all child members. In other words, when we apply storm control on "
interface all" it gets applied to physical interfaces only. For AE interfaces we have to apply it explicitly.
user@device> show configuration ethernet-switching-options storm-control
action-shutdown;
interface ae10.0 {
level 30;
no-multicast;
}
interface all {
level 30;
no-multicast;
}
So with the above config, whenever the broadcast or/and unknown unicast traffic exceeds 6 Gig i.e. 30% of AE10 BW storm-control will be in effect and disable the AE port along with child member interfaces.