arp broadcast packets getting dropped on TSN
| Affects | Status | Importance | Assigned to | Milestone | ||
|---|---|---|---|---|---|---|
| Juniper Openstack | Status tracked in Trunk | |||||
| R2.20 |
Fix Committed
|
High
|
Nischal Sheth | |||
| Trunk |
Fix Committed
|
High
|
Nischal Sheth | |||
Bug Description
R2.20 Build 7, Ubuntu 14.04 Multi-node icehouse setup
env.roledefs = {
'all': [host1, host2, host3, host4, host5, host6],
'cfgm': [host1,
'openstack': [host2],
'control': [host1,
'compute': [host4,host5, host6],
'collector': [host1,
'webui': [host1],
'database': [host1,
'toragent': [host6],
'tsn': [host6],
'build': [host_build],
}
env.hostnames = {
'all': ['nodec1', 'nodec2', 'nodec3', 'nodek1', 'nodek2', 'nodek3']
}
nodek3 has two tor-agents and a TSN
TOR1 : 10.204.217.38 (loopback ip 99.99.99.99) has BMS 155.252.144.3 (02:dd:41:73:2a:bd )
TOR2 : 10.204.216.195 has BMS 155.252.144.4 (02:5b:0e:bd:e7:5f)
It was seen on one of the occasions that arp packets from 155.252.144.3 to resolve 155.252.144.4 were getting 'Discard'ed on TSN
Manish and Hari analyzed that the evpn table in control-node had routes with label 0 (got from BGP peer)
Attached is the output of introspect
Gcores of control-nodes on all 3 control-nodes will be in http://
root@nodek3:~# rt --dump 1 --family bridge
Kernel L2 Bridge table 0/1
Flags: L=Label Valid, Df=DHCP flood
Index DestMac Flags Label/VNID Nexthop
97192 ff:ff:ff:ff:ff:ff L 24 42
113440 2:dd:41:73:2a:bd L 24 31
236200 c:c4:7a:32:a:8a - 2
241184 2:5b:e:bd:e7:5f - 1
252916 0:0:5e:0:1:0 - 2
root@nodek3:~# nh --get 42
Id:042 Type:Composite Fmly:AF_BRIDGE Flags:Valid, Multicast, L2, Rid:0 Ref_cnt:2 Vrf:1
Sub NH(label): 41(0) 36(0)
root@nodek3:~# nh --get 41
Id:041 Type:Composite Fmly: AF_INET Flags:Valid, Tor, Rid:0 Ref_cnt:2 Vrf:1
Sub NH(label): 33(24) 31(0)
root@nodek3:~# nh --get 31
Id:031 Type:Tunnel Fmly: AF_INET Flags:Valid, Vxlan, Rid:0 Ref_cnt:4 Vrf:0
Oif:0 Len:14 Flags Valid, Vxlan, Data:2c 21 72 a0 4a 80 0c c4 7a 32 0a 8a 08 00
Vrf:0 Sip:10.204.216.223 Dip:99.99.99.99
root@nodek3:~#
root@nodek3:~# rt --dump 1 --family bridge
Kernel L2 Bridge table 0/1
Flags: L=Label Valid, Df=DHCP flood
Index DestMac Flags Label/VNID Nexthop
97192 ff:ff:ff:ff:ff:ff L 24 42
113440 2:dd:41:73:2a:bd L 24 31
236200 c:c4:7a:32:a:8a - 2
241184 2:5b:e:bd:e7:5f - 1
252916 0:0:5e:0:1:0 - 2
root@nodek3:~# nh --get 42
Id:042 Type:Composite Fmly:AF_BRIDGE Flags:Valid, Multicast, L2, Rid:0 Ref_cnt:2 Vrf:1
Sub NH(label): 41(0) 36(0)
root@nodek3:~# nh --get 41
Id:041 Type:Composite Fmly: AF_INET Flags:Valid, Tor, Rid:0 Ref_cnt:2 Vrf:1
Sub NH(label): 33(24) 31(0)
root@nodek3:~# nh --get 31
Id:031 Type:Tunnel Fmly: AF_INET Flags:Valid, Vxlan, Rid:0 Ref_cnt:4 Vrf:0
Oif:0 Len:14 Flags Valid, Vxlan, Data:2c 21 72 a0 4a 80 0c c4 7a 32 0a 8a 08 00
Vrf:0 Sip:10.204.216.223 Dip:99.99.99.99
root@nodek3:~#
root@nodek3:~# nh --get 33
Id:033 Type:Tunnel Fmly: AF_INET Flags:Vxlan, Rid:0 Ref_cnt:3 Vrf:0 <<<<<< no Valid flag
Oif:0 Len:14 Flags Vxlan, Data:52 54 00 28 e9 53 0c c4 7a 32 0a 8a 08 00
Vrf:0 Sip:10.204.216.223 Dip:10.204.216.195
root@nodek3:~#
| Vedamurthy Joshi (vedujoshi) wrote | #1 |
| Changed in juniperopenstack: | |
| milestone: | none → r2.30-fcs |
| OpenContrail Admin (ci-admin-f) wrote master | #2 |
| OpenContrail Admin (ci-admin-f) wrote R2.20 | #4 |
| OpenContrail Admin (ci-admin-f) wrote A change has been merged | #6 |
| OpenContrail Admin (ci-admin-f) wrote | #7 |
| OpenContrail Admin (ci-admin-f) wrote master | #8 |
| OpenContrail Admin (ci-admin-f) wrote R2.20 | #10 |
| OpenContrail Admin (ci-admin-f) wrote A change has been merged | #12 |
| OpenContrail Admin (ci-admin-f) wrote | #13 |
Review in progress for https:/
Submitter: Nischal Sheth (<email address hidden>)