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bgp: add initial test topologies
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Add two basic BGP test topologies, including iBGP and eBGP sessions,
route redistribution and ECMP. These topologies should serve as a
foundation for upcoming conformance tests.

In a first moment, modify holo-bgp to skip relaying `PolicyApply`
messages to the test framework. This is necessary because the `nbr_tx`
task is also relaying messages to the test framework, so the order in
which those messages are collected is non-deterministic. A proper fix
will be implemented later.

Signed-off-by: Renato Westphal <[email protected]>
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@rwestphal
rwestphal committed Apr 7, 2024
1 parent 8b34b69 commit a8cd5d4
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Showing 57 changed files with 8,937 additions and 8 deletions.
1 change: 1 addition & 0 deletions holo-bgp/src/instance.rs
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Expand Up @@ -409,6 +409,7 @@ impl ProtocolInputChannelsTx {
impl MessageReceiver<ProtocolInputMsg> for ProtocolInputChannelsRx {
async fn recv(&mut self) -> Option<ProtocolInputMsg> {
tokio::select! {
biased;
msg = self.tcp_accept.recv() => {
msg.map(ProtocolInputMsg::TcpAccept)
}
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15 changes: 7 additions & 8 deletions holo-bgp/src/tasks.rs
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Expand Up @@ -180,16 +180,22 @@ pub mod messages {
nbr_addr: IpAddr,
afi_safi: AfiSafi,
routes: Vec<(IpNetwork, RoutePolicyInfo)>,
#[serde(skip)]
policies: Vec<Arc<Policy>>,
#[serde(skip)]
match_sets: Arc<MatchSets>,
#[serde(skip)]
default_policy: DefaultPolicyType,
},
Redistribute {
afi_safi: AfiSafi,
prefix: IpNetwork,
route: RoutePolicyInfo,
#[serde(skip)]
policies: Vec<Arc<Policy>>,
#[serde(skip)]
match_sets: Arc<MatchSets>,
#[serde(skip)]
default_policy: DefaultPolicyType,
},
}
Expand Down Expand Up @@ -480,14 +486,7 @@ pub(crate) fn policy_apply(
}
#[cfg(feature = "testing")]
{
let proto_output_tx = proto_output_tx.clone();
Task::spawn_blocking(move || {
// Relay message to the test framework.
while let Ok(msg) = policy_applyc.recv() {
let msg = messages::ProtocolOutputMsg::PolicyApply(msg);
let _ = proto_output_tx.blocking_send(msg);
}
})
Task::spawn_blocking(move || {})
}
}

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7 changes: 7 additions & 0 deletions holo-bgp/tests/conformance/mod.rs
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@@ -0,0 +1,7 @@
//
// Copyright (c) The Holo Core Contributors
//
// SPDX-License-Identifier: MIT
//

mod topologies;
24 changes: 24 additions & 0 deletions holo-bgp/tests/conformance/topologies/mod.rs
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@@ -0,0 +1,24 @@
//
// Copyright (c) The Holo Core Contributors
//
// SPDX-License-Identifier: MIT
//

use holo_bgp::instance::Instance;
use holo_protocol::test::stub::run_test_topology;

#[tokio::test]
async fn topology1_1() {
for rt_num in 1..=4 {
let rt_name = format!("rt{}", rt_num);
run_test_topology::<Instance>("topo1-1", &rt_name).await;
}
}

#[tokio::test]
async fn topology2_1() {
for rt_num in 1..=6 {
let rt_name = format!("rt{}", rt_num);
run_test_topology::<Instance>("topo2-1", &rt_name).await;
}
}
25 changes: 25 additions & 0 deletions holo-bgp/tests/conformance/topologies/topo1-1/description.txt
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+---------+ +---------+
| | | |
| RT1 |eth-rt2 eth-rt1| RT2 |
| 1.1.1.1 +---------------------+ 2.2.2.2 |
| | 10.0.1.0/24 | |
+---------+ +---------+
|eth-rt3 |eth-rt4
| |
|10.0.2.0/24 |10.0.3.0/24
| |
|eth-rt1 |eth-rt2
+---------+ +---------+
| | | |
| RT3 | 172.16.1.0/24 | RT4 |
| 3.3.3.3 +---------------------+ 4.4.4.4 |
| |eth-rt4 eth-rt3| |
+---------+ +---------+

eBGP:
* rt1 (AS 65100) <-> rt2 (AS 65101)
* rt1 (AS 65100) <-> rt3 (AS 65000)
* rt2 (AS 65101) <-> rt4 (AS 65000)

iBGP + OSPF:
* rt3 <-> rt4 (AS 65000)
136 changes: 136 additions & 0 deletions holo-bgp/tests/conformance/topologies/topo1-1/rt1/config.json
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{
"ietf-interfaces:interfaces": {
"interface": [
{
"name": "lo",
"type": "iana-if-type:ethernetCsmacd",
"ietf-ip:ipv4": {}
},
{
"name": "eth-rt2",
"type": "iana-if-type:ethernetCsmacd",
"ietf-ip:ipv4": {}
},
{
"name": "eth-rt3",
"type": "iana-if-type:ethernetCsmacd",
"ietf-ip:ipv4": {}
}
]
},
"ietf-routing:routing": {
"control-plane-protocols": {
"control-plane-protocol": [
{
"type": "ietf-bgp:bgp",
"name": "test",
"ietf-bgp:bgp": {
"global": {
"as": 65100,
"identifier": "1.1.1.1",
"afi-safis": {
"afi-safi": [
{
"name": "iana-bgp-types:ipv4-unicast",
"apply-policy": {
"import-policy": [
"REDIST"
]
},
"ipv4-unicast": {
"holo-bgp:redistribution": [
{
"type": "ietf-routing:direct"
}
]
}
}
]
}
},
"neighbors": {
"neighbor": [
{
"remote-address": "10.0.1.2",
"peer-as": 65101,
"afi-safis": {
"afi-safi": [
{
"name": "iana-bgp-types:ipv4-unicast",
"enabled": true,
"apply-policy": {
"default-import-policy": "accept-route",
"default-export-policy": "accept-route"
}
}
]
}
},
{
"remote-address": "10.0.2.3",
"peer-as": 65000,
"afi-safis": {
"afi-safi": [
{
"name": "iana-bgp-types:ipv4-unicast",
"enabled": true,
"apply-policy": {
"default-import-policy": "accept-route",
"default-export-policy": "accept-route"
}
}
]
}
}
]
}
}
}
]
}
},
"ietf-routing-policy:routing-policy": {
"defined-sets": {
"prefix-sets": {
"prefix-set": [
{
"name": "LOOPBACK",
"mode": "ipv4",
"prefixes": {
"prefix-list": [
{
"ip-prefix": "1.1.1.1/32",
"mask-length-lower": 32,
"mask-length-upper": 32
}
]
}
}
]
}
},
"policy-definitions": {
"policy-definition": [
{
"name": "REDIST",
"statements": {
"statement": [
{
"name": "1",
"conditions": {
"match-prefix-set": {
"prefix-set": "LOOPBACK"
}
},
"actions": {
"policy-result": "accept-route"
}
}
]
}
}
]
}
}
}

64 changes: 64 additions & 0 deletions holo-bgp/tests/conformance/topologies/topo1-1/rt1/events.jsonl
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{"Ibus":"RouterIdQuery"}
{"Ibus":{"RouterIdUpdate":"1.1.1.1"}}
{"Ibus":{"PolicyMatchSetsUpd":{"prefixes":[[["LOOPBACK","Ipv4"],{"name":"LOOPBACK","mode":"Ipv4","prefixes":[{"prefix":"1.1.1.1/32","masklen_lower":32,"masklen_upper":32}]}]],"neighbors":{},"tags":{},"bgp":{"as_paths":{},"comms":{},"ext_comms":{},"extv6_comms":{},"large_comms":{},"nexthops":{}}}}}
{"Ibus":{"PolicyUpd":{"name":"REDIST","stmts":{"1":{"name":"1","prefix_set_match_type":"Any","tag_set_match_type":"Any","conditions":[["MatchPrefixSet",{"MatchPrefixSet":"LOOPBACK"}]],"actions":[["Accept",{"Accept":true}]]}}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Ibus":{"RouteRedistributeDump":{"protocol":"direct","af":"Ipv4"}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"direct","prefix":"1.1.1.1/32","distance":0,"metric":0,"tag":null,"nexthops":[{"Interface":{"ifindex":1}}]}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"direct","prefix":"10.0.1.0/24","distance":0,"metric":0,"tag":null,"nexthops":[{"Interface":{"ifindex":3}}]}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"direct","prefix":"10.0.2.0/24","distance":0,"metric":0,"tag":null,"nexthops":[{"Interface":{"ifindex":5}}]}}}
{"Protocol":{"PolicyResult":{"Redistribute":{"afi_safi":"Ipv4Unicast","prefix":"1.1.1.1/32","result":{"Accept":{"origin":{"Protocol":"direct"},"route_type":"Internal","opaque_attrs":"None","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Redistribute":{"afi_safi":"Ipv4Unicast","prefix":"10.0.1.0/24","result":"Reject"}}}}
{"Protocol":{"PolicyResult":{"Redistribute":{"afi_safi":"Ipv4Unicast","prefix":"10.0.2.0/24","result":"Reject"}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"TcpAccept":{"conn_info":{"local_addr":"10.0.1.1","local_port":179,"remote_addr":"10.0.1.2","remote_port":39828}}}}
{"Protocol":{"NbrTimer":{"nbr_addr":"10.0.2.3","timer":"AutoStart"}}}
{"Protocol":{"NbrTimer":{"nbr_addr":"10.0.1.2","timer":"AutoStart"}}}
{"Protocol":{"TcpConnect":{"conn_info":{"local_addr":"10.0.1.1","local_port":40492,"remote_addr":"10.0.1.2","remote_port":179}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Err":{"TcpConnClosed":"10.0.1.2"}}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"TcpAccept":{"conn_info":{"local_addr":"10.0.1.1","local_port":179,"remote_addr":"10.0.1.2","remote_port":39836}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Open":{"version":4,"my_as":65101,"holdtime":90,"identifier":"2.2.2.2","capabilities":[{"MultiProtocol":{"afi":"Ipv4","safi":"Unicast"}},{"FourOctetAsNumber":{"asn":65101}},"RouteRefresh"]}}}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Keepalive":{}}}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Update":{"reach":{"prefixes":["2.2.2.2/32"],"nexthop":"10.0.1.2"},"attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101]}]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["1.1.1.1/32",{"Accept":{"origin":{"Protocol":"direct"},"route_type":"Internal","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[]}}}}}]]}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Import","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["2.2.2.2/32",{"Accept":{"origin":{"Neighbor":{"identifier":"2.2.2.2","remote_addr":"10.0.1.2"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101]}]},"nexthop":"10.0.1.2"}}}}]]}}}}
{"Ibus":{"NexthopTrack":"10.0.1.2"}}
{"Ibus":{"NexthopUpd":{"addr":"10.0.1.2","metric":0}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Ibus":{"RouteIpAdd":{"protocol":"bgp","prefix":"2.2.2.2/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[]}}]}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"bgp","prefix":"2.2.2.2/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[{"Address":{"ifindex":3,"addr":"10.0.1.2","labels":[]}}]}}]}}}
{"Protocol":{"TcpConnect":{"conn_info":{"local_addr":"10.0.2.1","local_port":52856,"remote_addr":"10.0.2.3","remote_port":179}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Err":{"TcpConnClosed":"10.0.2.3"}}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["1.1.1.1/32",{"Accept":{"origin":{"Protocol":"direct"},"route_type":"Internal","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[]}}}}}]]}}}}
{"Protocol":{"TcpAccept":{"conn_info":{"local_addr":"10.0.2.1","local_port":179,"remote_addr":"10.0.2.3","remote_port":54870}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Ok":{"Open":{"version":4,"my_as":65000,"holdtime":90,"identifier":"3.3.3.3","capabilities":[{"MultiProtocol":{"afi":"Ipv4","safi":"Unicast"}},{"FourOctetAsNumber":{"asn":65000}},"RouteRefresh"]}}}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Ok":{"Keepalive":{}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.2.3","afi_safi":"Ipv4Unicast","routes":[["1.1.1.1/32",{"Accept":{"origin":{"Protocol":"direct"},"route_type":"Internal","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[]}}}}}],["2.2.2.2/32",{"Accept":{"origin":{"Neighbor":{"identifier":"2.2.2.2","remote_addr":"10.0.1.2"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101]}]},"nexthop":"10.0.1.2"}}}}]]}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Ok":{"Update":{"reach":{"prefixes":["3.3.3.3/32"],"nexthop":"10.0.2.3"},"attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Import","nbr_addr":"10.0.2.3","afi_safi":"Ipv4Unicast","routes":[["3.3.3.3/32",{"Accept":{"origin":{"Neighbor":{"identifier":"3.3.3.3","remote_addr":"10.0.2.3"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]},"nexthop":"10.0.2.3"}}}}]]}}}}
{"Ibus":{"NexthopTrack":"10.0.2.3"}}
{"Ibus":{"NexthopUpd":{"addr":"10.0.2.3","metric":0}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["3.3.3.3/32",{"Accept":{"origin":{"Neighbor":{"identifier":"3.3.3.3","remote_addr":"10.0.2.3"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]},"nexthop":"10.0.2.3"}}}}]]}}}}
{"Ibus":{"RouteIpAdd":{"protocol":"bgp","prefix":"3.3.3.3/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[]}}]}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"bgp","prefix":"3.3.3.3/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[{"Address":{"ifindex":5,"addr":"10.0.2.3","labels":[]}}]}}]}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Update":{"reach":{"prefixes":["4.4.4.4/32"],"nexthop":"10.0.1.2"},"attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101,65000]}]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Import","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["4.4.4.4/32",{"Accept":{"origin":{"Neighbor":{"identifier":"2.2.2.2","remote_addr":"10.0.1.2"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101,65000]}]},"nexthop":"10.0.1.2"}}}}]]}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Ibus":{"RouteIpAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[]}}]}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[{"Address":{"ifindex":3,"addr":"10.0.1.2","labels":[]}}]}}]}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Ok":{"Update":{"reach":{"prefixes":["4.4.4.4/32"],"nexthop":"10.0.2.3"},"attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Import","nbr_addr":"10.0.2.3","afi_safi":"Ipv4Unicast","routes":[["4.4.4.4/32",{"Accept":{"origin":{"Neighbor":{"identifier":"3.3.3.3","remote_addr":"10.0.2.3"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]},"nexthop":"10.0.2.3"}}}}]]}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Ibus":{"RouteIpAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[]}}]}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["4.4.4.4/32",{"Accept":{"origin":{"Neighbor":{"identifier":"3.3.3.3","remote_addr":"10.0.2.3"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]},"nexthop":"10.0.2.3"}}}}]]}}}}
{"Ibus":{"RouteRedistributeAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[{"Address":{"ifindex":5,"addr":"10.0.2.3","labels":[]}}]}}]}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Update":{"reach":{"prefixes":["3.3.3.3/32"],"nexthop":"10.0.1.2"},"attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101,65000]}]}}}}}}}}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Import","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["3.3.3.3/32",{"Accept":{"origin":{"Neighbor":{"identifier":"2.2.2.2","remote_addr":"10.0.1.2"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65101,65000]}]},"nexthop":"10.0.1.2"}}}}]]}}}}
{"Protocol":{"TriggerDecisionProcess":null}}
{"Protocol":{"PolicyResult":{"Neighbor":{"policy_type":"Export","nbr_addr":"10.0.1.2","afi_safi":"Ipv4Unicast","routes":[["3.3.3.3/32",{"Accept":{"origin":{"Neighbor":{"identifier":"3.3.3.3","remote_addr":"10.0.2.3"}},"route_type":"External","attrs":{"base":{"origin":"Incomplete","as_path":{"segments":[{"seg_type":"Sequence","members":[65000]}]},"nexthop":"10.0.2.3"}}}}]]}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.1.2","msg":{"Ok":{"Keepalive":{}}}}}}
{"Protocol":{"NbrRx":{"nbr_addr":"10.0.2.3","msg":{"Ok":{"Keepalive":{}}}}}}
8 changes: 8 additions & 0 deletions holo-bgp/tests/conformance/topologies/topo1-1/rt1/output/ibus.jsonl
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"RouterIdQuery"
{"RouteRedistributeDump":{"protocol":"direct","af":"Ipv4"}}
{"NexthopTrack":"10.0.1.2"}
{"RouteIpAdd":{"protocol":"bgp","prefix":"2.2.2.2/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[]}}]}}
{"NexthopTrack":"10.0.2.3"}
{"RouteIpAdd":{"protocol":"bgp","prefix":"3.3.3.3/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[]}}]}}
{"RouteIpAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.1.2","labels":[],"resolved":[]}}]}}
{"RouteIpAdd":{"protocol":"bgp","prefix":"4.4.4.4/32","distance":20,"metric":0,"tag":null,"nexthops":[{"Recursive":{"addr":"10.0.2.3","labels":[],"resolved":[]}}]}}
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