Segment Routing traffic statistics
When implementing traffic engineering in an SR-enabled network, it is essential to have visibility into the traffic volumes on a per-SID basis. Segment Routing traffic statistics are often used in SDN applications, via Path Computation Engine (PCE) to perform better load balancing of traffic across various paths throughout the network.
Enabling statistics collection for SR-ISIS
Enabling ingress statistics collection for SR-ISIS SIDs
In the following configuration example, the ingress statistics collection is enabled for both adjacency SIDs and node SIDs on IS-IS instance sr-isis-1.
--{ candidate shared default }--[ ]--
# /info with-context network-instance default protocols isis instance sr-isis-1 segment-routing mpls ingress-statistics
network-instance default {
protocols {
isis {
instance sr-isis-1 {
segment-routing {
mpls {
ingress-statistics {
adj-sid true
node-sid true
}
}
}
}
}
}
}Enabling egress statistics collection for SR-ISIS SIDs
In the following configuration example, the egress statistics collection is enabled for both adjacency SIDs and node SIDs on IS-IS instance sr-isis-2.
--{ candidate shared default }--[ ]--
# /info with-context network-instance default protocols isis instance sr-isis-2 segment-routing mpls egress-statistics
network-instance default {
protocols {
isis {
instance sr-isis-2 {
segment-routing {
mpls {
egress-statistics {
adj-sid true
node-sid true
}
}
}
}
}
}
}Display SR-ISIS traffic statistics
To display SR-ISIS traffic statistics, use the info from state network-instance protocols isis instance segment-routing mpls sid-statistics command.
--{ state }--[ ]--
# / info from state with-context network-instance default protocols isis instance 0 segment-routing mpls sid-statistics label 21001
network-instance default {
protocols {
isis {
instance 0 {
segment-routing {
mpls {
sid-statistics {
label 21001 {
type adjacency
prefix 10.0.0.2/32
interface ethernet-1/24.1
algorithm 0
egress {
oper-state enabled
octets 14460
packets 10
resource-allocation success
}
ingress {
oper-state enabled
octets 14500
packets 10
resource-allocation success
}
}
}
}
}
}
}
}
}
Clear SR-ISIS traffic statistics
To clear SR-ISIS traffic statistics, use the tools network-instance protocols isis instance 0 segment-routing-statistics clear command.
--{ candidate shared default }--[ ]--
# / tools network-instance default protocols isis instance 0 segment-routing-statistics clear