graceful_restart - openconfig/featureprofiles GitHub Wiki
- test verifies isis garceful restart support in helper and restarter role
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Connect:
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DUT port-1 to ATE port-1
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DUT port-2 to ATE port-2
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Configure IPv4 and IPv6 addresses on DUT and ATE ports as shown below
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DUT port-1 IPv4 address
dp1-v4 = 192.168.1.1/30 -
ATE port-1 IPv4 address
ap1-v4 = 192.168.1.2/30 -
DUT port-2 IPv4 address
dp2-v4 = 192.168.1.5/30 -
ATE port-2 IPv4 address
ap2-v4 = 192.168.1.6/30 -
DUT port-1 IPv6 address
dp1-v6 = 2001:DB8::1/126 -
ATE port-1 IPv6 address
ap1-v6 = 2001:DB8::2/126 -
DUT port-2 IPv6 address
dp2-v6 = 2001:DB8::5/126 -
ATE port-2 IPv6 address
ap2-v6 = 2001:DB8::6/126
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Create an "target IPv4" network i.e.
ipv4-network = 192.168.10.0/24attached to ATE port-2 and inject it to ISIS. -
Create an "target IPv6" network i.e.
ipv6-network = 2024:db8:128:128::/64attached to ATE port-2 and inject it to ISIS. -
Configure ISIS
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Configure separate ISIS emulated routers, one on each ATE ports-1, port-2
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Enable IPv4 and IPv6 IS-IS L2 adjacency between ATE port-1 and DUT port-1, DUT port-2 and ATE port-2 in point-to-point mode.
{ "network-instances": { "network-instance": [ { "name": "DEFAULT", "protocols": { "protocol": [ { "identifier": "ISIS", "name": "DEFAULT", "config": { "name": "DEFAULT", "identifier": "ISIS" }, "isis": { "global": { "afi-safi": { "af": [ { "afi-name": "IPV4", "config": { "afi-name": "IPV4", "enabled": true, "safi-name": "UNICAST" }, "safi-name": "UNICAST" }, { "afi-name": "IPV6", "config": { "afi-name": "IPV6", "enabled": true, "safi-name": "UNICAST" }, "safi-name": "UNICAST" } ] }, "config": { "level-capability": "LEVEL_2", "net": [ "<NET address of this WBB>" ] } }, "interfaces": { "interface": [ { "config": { "passive": true, "enabled": true, "interface-id": "Loopback0" }, "interface-id": "Loopback0", "interface-ref": { "config": { "interface": "loopback0", "subinterface": 0 } }, "levels": { "level": [ { "config": { "level-number": 2, "enabled": true }, "level-number": 2 } ] } }, { "config": { "circuit-type": "POINT_TO_POINT", "enabled": true, "interface-id": "<Interface_ID>" }, "interface-id": "<Interface_ID>", "interface-ref": { "config": { "interface": "<Interface name>", "subinterface": 0 } }, "levels": { "level": [ { "afi-safi": { "af": [ { "afi-name": "IPV4", "config": { "afi-name": "IPV4", "metric": 10, "safi-name": "UNICAST" }, "safi-name": "UNICAST" }, { "afi-name": "IPV6", "config": { "afi-name": "IPV6", "metric": 10, "safi-name": "UNICAST" }, "safi-name": "UNICAST" } ] }, "config": { "level-number": 2, "enabled": true }, "level-number": 2, "timers": { "config": { "hello-interval": 10, "hello-multiplier": 6 } } } ] } } ] }, "levels": { "level": [ { "config": { "level-number": 2, "metric-style": "WIDE_METRIC", "enabled": true }, "level-number": 2 } ] } } } ] } } ] } } -
Enable IPv4 and IPv6 IS-IS L2 adjacency between ATE port-1 and DUT port-1, DUT port-2 and ATE port-2 in point-to-point mode.\
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Set ISIS graceful restart helper mode on DUT
{ "network-instances": { "network-instance": [ { "name": "DEFAULT", "protocols": { "protocol": [ { "identifier": "ISIS", "name": "DEFAULT", "isis": { "global": { "graceful-restart": { "config": { "enabled": true, "helper-only": true, "restart-time": 30 } } } } } ] } } ] } }
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- Generate traffic form ATE port-1 to "target IPv4" and "target IPv6" networks (ATE port-2)
- Verify traffic is recived on ATE port-2
- Restart ISIS on ATE port-2 (Alternativly: using set_control_state to "down" for emulated isis router. Wait (restart-time - 10) sec and set it back to "up")
- Verify traffic is recived on ATE port-2 during restart time ( no losses )
- Disable ISIS on ATE port-2 (set_control_state to "down"). Wait restart-time seconds
- Verify traffic is NOT recived on ATE port-2 (after restart-time expires)
- Generate traffic form ATE port-1 to "target IPv4" and "target IPv6" networks (ATE port-2)
- Verify traffic is recived on ATE port-2
- Using gNOI SwitchControlProcessor call initiate CONROLER-CARD switchover.
- Verify traffic is recived on ATE port-2 during restart time ( no losses )
- Wait 60 sec.
- Generate traffic form ATE port-1 to "target IPv4" and "target IPv6" networks (ATE port-2)
- Verify traffic is recived on ATE port-2
- Using gNOI KillProcess w/ SIGNAL_KILL call restart process serving ISIS (implementation dependednt). This try to simulate ISIS crash due to unexpected error.
- Verify traffic is recived on ATE port-2 during restart time ( no losses )
- Wait 60 sec.
{
"openconfig-network-instance:network-instances": {
"network-instance": [
{
"name": "DEFAULT",
"protocols": {
"protocol": [
{
"identifier": "openconfig-policy-types:ISIS",
"name": "DEFAULT",
"isis": {
"global": {
"graceful-restart": {
"config": {
"enabled": true,
"helper-only": true,
"restart-time": 30
}
}
}
}
}
]
}
}
]
}
}The below yaml defines the OC paths intended to be covered by this test. OC paths used for test setup are not listed here.
paths:
## Config Paths ##
/network-instances/network-instance/protocols/protocol/isis/global/graceful-restart/config/enabled:
/network-instances/network-instance/protocols/protocol/isis/global/graceful-restart/config/helper-only:
/network-instances/network-instance/protocols/protocol/isis/global/graceful-restart/config/restart-time:
## State Paths ##
/network-instances/network-instance/protocols/protocol/isis/interfaces/interface/levels/level/state/enabled:
rpcs:
gnmi:
gNMI.Subscribe:
gNMI.Set:
gnoi:
system.System.SwitchControlProcessor:
system.System.KillProcess:- MFF