[NETVIRT-1403] Ping between IPV6 and DCGW is not happening

Thu, 19 Dec 2019 06:36:01 +0000

When executing ipv6 ping from DCGW to VM and vice versa, ping is not working. Routes are showing up in quagga side, but quagga to Controller communication is not happening is what we suspect. Discussed with Karthikeyan and Sivakumar Perumalla regarding this. We need some help from VPN development team. Can any one from vpn team help us in this.?

Following investigations are done:

For DCGW side config: I have attached the configurations.

Below are the 2 loopback for ipv6 we configured in SER side:

interface lo2 loopback

ipv6 address 2001:db5::3:f816:3eff:fedb:1b40/128

interface lo3 loopback

ipv6 address 2001:db5:4:f816:3eff:fedb:1b40::/128

no logging console

these entries are showing up in quagga:

bgpd# show bgp ipv6 vpn all hidden

BGP table version is 0, local router ID is 11.33.216.118

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: as2 1:3

i2001:db5:0:2::/64

::ffff:192.168.113.94 0 100 0 ?

Route Distinguisher: as2 1:4

i2001:db5:0:3:f816:3eff:fedb:1b40/128

::ffff:192.168.113.94 0 100 0 ?

i2001:db5:4:f816:3eff:fedb:1b40:0/128

::ffff:192.168.113.94 0 100 0 ?

Displayed 3 out of 3 total prefixes

But in the ODL side, when we check in fib, these are missing:

cli>display fib

Enter password for user cscadm:

RD Prefix NextHop Label Origin

-------------------------------------------------------------------

1:4 30.1.1.3/32 192.168.113.10 103012 l

1:4 2001:db5:0:2:f816:3eff:fef2:174a/128 192.168.113.11 103013 l

1:4 30.1.1.4/32 192.168.113.11 103015 l

1:4 30.1.1.1/32 0.0.0.0 103014 l

1:4 30.1.1.0/24 192.168.113.11 103009 c

1:4 2001:db5:0:2:f816:3eff:fe81:657b/128 192.168.113.10 103011 l

1:4 2001:db5:0:2::1/128 0.0.0.0 103010 l

1:4 4.4.4.4/32 192.168.113.94 786432 b

1:4 2001:db5:0:2::/64 192.168.113.11 103008 c

BGP Configuration from ODL side:

cli>display bgp-config

Configuration Server

Host 192.168.70.5

Port 7644

BGP Router

AS-Number 100

Router-ID 11.33.216.118

Stale-Path-Time default

F-bit ON

Log-File /opt/quagga/var/log/quagga/zrpcd.init.log

Log-Level debugging

Neighbors

192.168.113.94

AS-Number 100

Update-Source 11.33.216.118

Address-Families IPv4-Labeled-VPN IPv6-Labeled-VPN

192.168.113.95

AS-Number 100

Update-Source 11.33.216.118

Address-Families IPv4-Labeled-VPN

VPN Configs from ODL side:

cli>display vpn-config

Displaying VPN config for all VPNs

To display VPN config for a particular VPN, use the following syntax

Usage:display vpn-config [-vid/--vpnid <id>]

VPN ID Tenant ID RD

Import-RTs

Export-RTs

Subnet IDs

------------------------------------------------------------------------------------

4ae8cd92-48ca-49b5-94e1-b2921a260001 6c53df3a-3456-11e5-a151-feff819cdc9f [1:4]

[1:4]

812556e5-d34e-4b95-878f-74c73792ba02

42230350-f70c-4d60-a049-a8e4edc47c

When we saw quagga logs, Vrf entry is getting deleted in the middle.

I request vpn team to look into this on high priority.

root@cic-2:/opt/quagga/var/log/quagga# cat 0 | grep Vrf

2018/08/09 16:11:05 Informational ZRPC: addVrf(1:4) OK

2018/08/09 16:11:05 Informational ZRPC: addVrf(1:4, afi 2, safi 5) OK

2018/08/09 16:11:05 Informational ZRPC: addVrf(1:4, afi 1, safi 5) OK

2018/08/09 16:11:05 Informational ZRPC: delVrf(1:4, afi 2, safi 5) OK

2018/08/09 17:18:56 Informational ZRPC: addVrf(1:4) OK

2018/08/09 17:18:56 Informational ZRPC: addVrf(1:4, afi 1, safi 5) OK

root@cic-2:/opt/quagga/var/log/quagga#

OpenDaylight JIRA

[NETVIRT-1403] Ping between IPV6 and DCGW is not happening