Hello Quagga-Dev,
Please find a write-up for this feature, location of the code, and attached
are some real outputs from the running code. Hope this will be useful to the
members of the community interested in this feature.
I will certainly appreciate any feedback that you might have.
Regards,
Vipin
Multi-Instance OSPF
--------------------------
1. Requirement/Goal
Functional :
- Completely isolated OSPF instances, Each instance and its
information be tracked by an instance-id.
- Checks at the configuration time to make sure each instance runs
on a mutually exclusive set of interfaces
- Routes from all the instances still installed into the same table
in RIB/Zebra.
- Protocols should be able to redistribute routes from one or more
of OSPF instances.
- To add to this, even an OSPF instance should be able redistribute
routes from other instance(s).
Implementation specific:
- In order to reduce any regressions, least changes to the
protocol/functional parts of OSPF code.
- Fault-isolation per instance, per instance watchquagga monitoring
and re-startability.
- access to OSPF instance(s) via vtysh CLI pretty much the same way
as for the non-instanced (previous way) bring up.
2. Approach
To achieve these, the approach taken keeps most of the Quagga semantics 'as
is' for an instanced OSPF bring-up.
The easiest way to understand is to think of an OSPF instance as just
another quagga daemon that knows its instance-id.
Starting instruction point for an instanced daemon config is
/etc/quagga/deamons file, just like its for any daemon that user wants in
quagga.
Instead of vtysh statically looking for just one ospfd, it now has
intelligence to connect to any instanced ospfd(s). For that, it reads the
/var/run/quagga/ directory to work with any created ospfd-<instance-id>.vty
files to figure out the instance-id(s) and then come up with the
domain-socket-path(s) to connect to the instanced ospf daemons.
Wherever possible, a corresponding file for an instance is suffixed by
-<instance-id>¹ . For examples, if an OSPF instance with instance id 1 was
created, then this is how files names will be ospfd-1.pid, ospfd-1.vty,
ospfd-1.conf, ..
For debug outputs and show commands, where instance specification is needed,
its done using [..], for example ospf[1]
Note:
For obvious benefits in implementation, instance-id is taken as a ushort
integer.
3. Implementation Summary
-----
- etc/init.d/quagga is modified to support creating separate ospf daemon
process for each instance. Each individual instance is monitored by
watchquagga just like any protocol daemons.
(for Debian, we have created initd-mi.patch)
- Vtysh is modified to able to connect to multiple daemons of the same
protocol (supported for OSPF only for now).
- ospfd is modified to remember the Instance-ID that its invoked with. For
the entire life of the process it caters to any command request that
matches that instance-ID (unless its a non instance specific command).
Routes/messages to zebra are tagged with instance-ID.
- zebra route/redistribute mechanisms are modified to work with
[protocol type + instance-id]
- bgpd now has ability to have multiple instance specific redistribution
for a protocol (OSPF only supported/tested for now).
- ospfd now has ability to have multiple instance specific redistribution
from other OSPF instances.
- zlog ability to display instance-id besides the protocol/daemon name.
- Changes in other daemons are because of the needed integration with
some of the modified APIs/routines. (Didn¹t prefer replicating too many
separate instance specific APIs.)
- config/show/debug commands are modified to take instance-id argument
as appropriate.
4. Guidelines to start using multi-instance ospf
---------------------------------------------
The patch is backward compatible, i.e for any previous way of single ospf
deamon(router ospf <cr>) will continue to work as is, including all the
show commands etc.
To enable multiple instances, do the following:
1. service quagga stop
2. Modify /etc/quagga/daemons to add instance-ids of each desired
instance in the following format:
ospfd=³yes"
ospfd_instances="1,2,3"
assuming you want to enable 3 instances with those instance ids.
3. Create corresponding ospfd config files as ospfd-1.conf,
ospfd-2.conf
and ospfd-3.conf.
4. service quagga start/restart
5. Verify that the deamons are started as expected. You should see
ospfd started with -n <instance-id> option.
ps ef | grep quagga
With that /var/run/quagga/ should have ospfd-<instance-id>.pid and
ospfd-<instance-id>.vty to each instance.
6. Use vtysh to work with instances as you would with any other
daemons.
For any command, if instance-id argument is given it will be
responded
only by the daemon corresponding to that instance.
NOTE:
To safeguard against errors leading to too many processes getting
invoked,
a hard limit on number of instance-ids is in place.
Allowed instance-id range is <1-65535>
Instance-id can not be changed via vtysh, other router ospf
configuration
is allowed as before.
We have a patch for debian init.d/quagga, for the instanced OSPF invocation.
(Initd-mi.patch by Dinesh Dutt)
The main ospfd-mi.patch can be referred to at this tree. There are a couple
of more fixes to be merged.
https://github.com/CumulusNetworks/quagga/commit/90960d7656903648c66e301608b
e92c3dbce3beb
diffstat patches/quagga/ospfd-mi.patch
babeld/babel_main.c | 2
babeld/babel_zebra.c | 10
babeld/babeld.c | 3
bgpd/bgp_main.c | 2
bgpd/bgp_route.c | 47 -
bgpd/bgp_route.h | 9
bgpd/bgp_routemap.c | 41
bgpd/bgp_vty.c | 270 +++++-
bgpd/bgp_zebra.c | 182 ++--
bgpd/bgp_zebra.h | 12
bgpd/bgpd.c | 2
bgpd/bgpd.h | 21
isisd/isis_main.c | 2
isisd/isis_zebra.c | 17
lib/log.c | 15
lib/log.h | 3
lib/routemap.c | 6
lib/zclient.c | 96 +-
lib/zclient.h | 24
ospf6d/ospf6_main.c | 2
ospf6d/ospf6_zebra.c | 38
ospf6d/ospf6_zebra.h | 2
ospfd/ospf_asbr.c | 50 -
ospfd/ospf_asbr.h | 12
ospfd/ospf_dump.c | 979 +++++++++++++++++----
ospfd/ospf_flood.c | 40
ospfd/ospf_lsa.c | 95 +-
ospfd/ospf_lsa.h | 6
ospfd/ospf_main.c | 44
ospfd/ospf_nsm.c | 16
ospfd/ospf_opaque.c | 6
ospfd/ospf_packet.c | 2
ospfd/ospf_routemap.c | 62 -
ospfd/ospf_te.c | 12
ospfd/ospf_vty.c | 2066
++++++++++++++++++++++++++++++++++++++--------
ospfd/ospf_zebra.c | 360 +++++---
ospfd/ospf_zebra.h | 21
ospfd/ospfd.c | 97 +-
ospfd/ospfd.h | 57 -
ripd/rip_main.c | 2
ripd/rip_zebra.c | 40
ripngd/ripng_main.c | 2
ripngd/ripng_zebra.c | 40
tests/test-sig.c | 2
vtysh/extract.pl.in | 2
vtysh/vtysh.c | 198 ++++
watchquagga/watchquagga.c | 2
zebra/connected.c | 12
zebra/kernel_socket.c | 12
zebra/main.c | 2
zebra/redistribute.c | 36
zebra/rib.h | 13
zebra/rt_netlink.c | 12
zebra/rtread_getmsg.c | 2
zebra/rtread_proc.c | 2
zebra/test_main.c | 2
zebra/zebra_rib.c | 39
zebra/zebra_vty.c | 51 +
zebra/zserv.c | 67 -
zebra/zserv.h | 4
60 files changed, 4151 insertions(+), 1122 deletions(-)
root@rtr:~# cat /etc/quagga/daemons
zebra=yes
bgpd=yes
ospfd=yes
ospfd_instances="1 2 3 4 5"
root@rtr:~# ls /etc/quagga/
Quagga.conf bgpd.conf debian.conf ospfd-2.conf ospfd-4.conf vtysh.conf
Quagga.conf.sav daemons ospfd-1.conf ospfd-3.conf ospfd-5.conf zebra.conf
root@rtr:~# ls /var/run/quagga/
bgpd.pid ospfd-1.vty ospfd-3.pid ospfd-4.vty watchquagga.pid zserv.api
bgpd.vty ospfd-2.pid ospfd-3.vty ospfd-5.pid zebra.pid
ospfd-1.pid ospfd-2.vty ospfd-4.pid ospfd-5.vty zebra.vty
root@rtr:~# ps -ef | grep ospf
quagga 3475 1 0 03:47 ? 00:00:06 /usr/lib/quagga/ospfd --daemon
-A 127.0.0.1 -n 1
quagga 3498 1 0 03:47 ? 00:00:06 /usr/lib/quagga/ospfd --daemon
-A 127.0.0.1 -n 2
quagga 3521 1 0 03:47 ? 00:00:06 /usr/lib/quagga/ospfd --daemon
-A 127.0.0.1 -n 3
quagga 3544 1 0 03:47 ? 00:00:06 /usr/lib/quagga/ospfd --daemon
-A 127.0.0.1 -n 4
quagga 3567 1 0 03:47 ? 00:00:09 /usr/lib/quagga/ospfd --daemon
-A 127.0.0.1 -n 5
root 3592 1 0 03:47 ? 00:00:01 /usr/lib/quagga/watchquagga
-adz -r /usr/sbin/servicebBquaggabBrestartbB%s -s
/usr/sbin/servicebBquaggabBstartbB%s -k /usr/sbin/servicebBquaggabBstopbB%s -b
bB -t 30 zebra bgpd ospfd-1 ospfd-2 ospfd-3 ospfd-4 ospfd-5
root 18719 18060 0 07:27 pts/1 00:00:00 grep ospf
root@rtr:~#
interface swp1
description swp1 -> n2's swp1
ip ospf 1 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp2
description swp2 -> n2's swp2
ip ospf 2 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp3
description swp3 -> n2's swp3
ip ospf 3 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp4
description swp4 -> n2's swp4
ip ospf 4 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp5
description swp5 -> n2's swp5
ip ospf 5 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp6
description swp6 -> n2's swp6
ip ospf 5 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
interface swp7
description swp7 -> n2's swp7
ip ospf 5 area 0.0.0.0
ip ospf dead-interval 3
ip ospf hello-interval 1
ipv6 nd suppress-ra
link-detect
!
!
router bgp 100
bgp router-id 10.0.9.1
bgp log-neighbor-changes
redistribute ospf 1
redistribute ospf 2
neighbor 210.2.0.2 remote-as 100
neighbor 210.4.1.4 remote-as 400
neighbor 2001:20::2 remote-as 100
neighbor 2210:210:4:1::4 remote-as 400
!
address-family ipv6
neighbor 210.2.0.2 activate
neighbor 210.4.1.4 activate
neighbor 2001:20::2 activate
neighbor 2210:210:4:1::4 activate
exit-address-family
!
router ospf 1
ospf router-id 0.0.1.1
log-adjacency-changes detail
timers throttle spf 0 50 5000
redistribute static
redistribute ospf 2
!
router ospf 2
ospf router-id 0.0.1.2
log-adjacency-changes detail
timers throttle spf 0 50 5000
redistribute connected
!
router ospf 3
ospf router-id 0.0.1.3
log-adjacency-changes detail
timers throttle spf 0 50 5000
redistribute kernel
!
router ospf 4
ospf router-id 0.0.1.4
log-adjacency-changes detail
timers throttle spf 0 50 5000
redistribute rip
!
router ospf 5
ospf router-id 0.0.1.5
log-adjacency-changes detail
timers throttle spf 0 50 5000
redistribute bgp
!
end
rtr(config)# router ospf 1
rtr(config-router)# redistribute ospf
<1-65535> Instance ID
rtr(config-router)# redistribute ospf 2
rtr(config-router)# exit
rtr(config)# router bgp 100
rtr(config-router)# redistribute ospf
<1-65535> Metric for redistributed routes
<cr>
metric Metric for redistributed routes
route-map Route map reference
rtr(config-router)# redistribute ospf 1
<cr>
metric Default metric
route-map Pointer to route-map entries
rtr(config-router)# redistribute ospf 1
rtr(config-router)#
rtr# show ip ospf
<1-65535> Instance ID
<cr>
border-routers Show all the ABR's and ASBR's
database Database summary
interface Interface information
neighbor Neighbor list
route OSPF routing table
rtr# show ip ospf
OSPF Instance: 1
OSPF Routing Process, Router ID: 0.0.1.1
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h28m50s ago
Last SPF duration 53 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 90. Checksum Sum 0x003523b6
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 1, Active: 1
Number of fully adjacent neighbors in this area: 1
Area has no authentication
SPF algorithm executed 3 times
Number of LSA 3
Number of router LSA 2. Checksum Sum 0x0000b069
Number of network LSA 1. Checksum Sum 0x0000b9ba
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
OSPF Instance: 2
OSPF Routing Process, Router ID: 0.0.1.2
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h28m50s ago
Last SPF duration 64 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 18. Checksum Sum 0x000d36f0
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 1, Active: 1
Number of fully adjacent neighbors in this area: 1
Area has no authentication
SPF algorithm executed 5 times
Number of LSA 3
Number of router LSA 2. Checksum Sum 0x0000be54
Number of network LSA 1. Checksum Sum 0x0000c0af
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
OSPF Instance: 3
OSPF Routing Process, Router ID: 0.0.1.3
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h28m50s ago
Last SPF duration 49 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 90. Checksum Sum 0x002f27f4
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 1, Active: 1
Number of fully adjacent neighbors in this area: 1
Area has no authentication
SPF algorithm executed 5 times
Number of LSA 3
Number of router LSA 2. Checksum Sum 0x0000c841
Number of network LSA 1. Checksum Sum 0x0000c7a4
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
OSPF Instance: 4
OSPF Routing Process, Router ID: 0.0.1.4
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h28m50s ago
Last SPF duration 50 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 0. Checksum Sum 0x00000000
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 1, Active: 1
Number of fully adjacent neighbors in this area: 1
Area has no authentication
SPF algorithm executed 5 times
Number of LSA 3
Number of router LSA 2. Checksum Sum 0x0000d62c
Number of network LSA 1. Checksum Sum 0x0000ce99
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
OSPF Instance: 5
OSPF Routing Process, Router ID: 0.0.1.5
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h28m49s ago
Last SPF duration 92 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 90. Checksum Sum 0x002e6123
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 3, Active: 3
Number of fully adjacent neighbors in this area: 3
Area has no authentication
SPF algorithm executed 8 times
Number of LSA 5
Number of router LSA 2. Checksum Sum 0x00004f59
Number of network LSA 3. Checksum Sum 0x000265c5
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
rtr# show ip ospf 1
<cr>
border-routers Show all the ABR's and ASBR's
database Database summary
interface Interface information
neighbor Neighbor list
route OSPF routing table
rtr# show ip ospf 1
OSPF Instance: 1
OSPF Routing Process, Router ID: 0.0.1.1
Supports only single TOS (TOS0) routes
This implementation conforms to RFC2328
RFC1583Compatibility flag is disabled
OpaqueCapability flag is disabled
Initial SPF scheduling delay 0 millisec(s)
Minimum hold time between consecutive SPFs 50 millisec(s)
Maximum hold time between consecutive SPFs 5000 millisec(s)
Hold time multiplier is currently 1
SPF algorithm last executed 3h29m02s ago
Last SPF duration 53 usecs
SPF timer is inactive
LSA minimum arrival 1000 msecs
Write Multiplier set to 20
Refresh timer 10 secs
This router is an ASBR (injecting external routing information)
Number of external LSA 90. Checksum Sum 0x003523b6
Number of opaque AS LSA 0. Checksum Sum 0x00000000
Number of areas attached to this router: 1
All adjacency changes are logged
Area ID: 0.0.0.0 (Backbone)
Number of interfaces in this area: Total: 1, Active: 1
Number of fully adjacent neighbors in this area: 1
Area has no authentication
SPF algorithm executed 3 times
Number of LSA 3
Number of router LSA 2. Checksum Sum 0x0000b069
Number of network LSA 1. Checksum Sum 0x0000b9ba
Number of summary LSA 0. Checksum Sum 0x00000000
Number of ASBR summary LSA 0. Checksum Sum 0x00000000
Number of NSSA LSA 0. Checksum Sum 0x00000000
Number of opaque link LSA 0. Checksum Sum 0x00000000
Number of opaque area LSA 0. Checksum Sum 0x00000000
rtr# show ip ospf neighbor
OSPF Instance: 1
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
0.0.2.1 1 Full/DR 2.624s 210.2.0.2 swp1:210.2.0.1
0 0 0
OSPF Instance: 2
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
0.0.2.2 1 Full/DR 2.623s 210.2.1.2 swp2:210.2.1.1
0 0 0
OSPF Instance: 3
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
0.0.2.3 1 Full/DR 2.622s 210.2.2.2 swp3:210.2.2.1
0 0 0
OSPF Instance: 4
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
0.0.2.4 1 Full/DR 2.621s 210.2.3.2 swp4:210.2.3.1
0 0 0
OSPF Instance: 5
Neighbor ID Pri State Dead Time Address Interface
RXmtL RqstL DBsmL
0.0.2.5 1 Full/DR 2.621s 210.2.4.2 swp5:210.2.4.1
0 0 0
0.0.2.5 1 Full/DR 2.621s 210.2.5.2 swp6:210.2.5.1
0 0 0
0.0.2.5 1 Full/DR 2.621s 210.2.6.2 swp7:210.2.6.1
0 0 0
rtr# show ip ospf 2 database
OSPF Instance: 2
OSPF Router with ID (0.0.1.2)
Router Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum Link count
0.0.1.2 0.0.1.2 1816 0x8000000b 0x6326 1
0.0.2.2 0.0.2.2 82 0x8000000a 0x5b2e 1
Net Link States (Area 0.0.0.0)
Link ID ADV Router Age Seq# CkSum
210.2.1.2 0.0.2.2 92 0x80000008 0xc0af
AS External Link States
Link ID ADV Router Age Seq# CkSum Route
10.0.0.0 0.0.1.2 1576 0x80000007 0xfab3 E2 10.0.0.0/22 [0x0]
10.0.0.1 0.0.1.2 1056 0x80000007 0xffaa E2 10.0.0.1/32 [0x0]
10.0.1.1 0.0.1.2 506 0x80000008 0xf2b5 E2 10.0.1.1/32 [0x0]
10.0.2.1 0.0.1.2 746 0x80000008 0xe7bf E2 10.0.2.1/32 [0x0]
10.0.3.1 0.0.1.2 716 0x80000008 0xdcc9 E2 10.0.3.1/32 [0x0]
10.0.4.1 0.0.1.2 1606 0x80000007 0xd3d2 E2 10.0.4.1/32 [0x0]
10.0.5.1 0.0.1.2 586 0x80000008 0xc6dd E2 10.0.5.1/32 [0x0]
10.0.6.1 0.0.1.2 1706 0x80000007 0xbde6 E2 10.0.6.1/32 [0x0]
10.0.7.1 0.0.1.2 916 0x80000007 0xb2f0 E2 10.0.7.1/32 [0x0]
10.0.8.1 0.0.1.2 1706 0x80000007 0xa7fa E2 10.0.8.1/32 [0x0]
10.0.9.1 0.0.1.2 1806 0x80000007 0x9c05 E2 10.0.9.1/32 [0x0]
210.2.0.0 0.0.1.2 1016 0x80000007 0xbf21 E2 210.2.0.0/24 [0x0]
210.2.2.0 0.0.1.2 506 0x80000008 0xa736 E2 210.2.2.0/24 [0x0]
210.2.3.0 0.0.1.2 1726 0x80000007 0x9e3f E2 210.2.3.0/24 [0x0]
210.2.4.0 0.0.1.2 766 0x80000008 0x914a E2 210.2.4.0/24 [0x0]
210.2.5.0 0.0.1.2 26 0x80000008 0x8654 E2 210.2.5.0/24 [0x0]
210.2.6.0 0.0.1.2 56 0x80000008 0x7b5e E2 210.2.6.0/24 [0x0]
210.4.1.0 0.0.1.2 1586 0x80000007 0x9c41 E2 210.4.1.0/24 [0x0]
rtr#
rtr# debug ospf
<1-65535> Instance ID
event OSPF event information
ism OSPF Interface State Machine
lsa OSPF Link State Advertisement
nsm OSPF Neighbor State Machine
nssa OSPF nssa information
packet OSPF packets
zebra OSPF Zebra information
rtr# debug ospf 1
event OSPF event information
ism OSPF Interface State Machine
lsa OSPF Link State Advertisement
nsm OSPF Neighbor State Machine
nssa OSPF nssa information
packet OSPF packets
zebra OSPF Zebra information
rtr# debug ospf ism
rtr# show debugging ospf
OSPF Instance: 1
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 2
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 3
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 4
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 5
OSPF debugging status:
OSPF ISM debugging is on
rtr# debug ospf 1 nsm
rtr# show debugging ospf
OSPF Instance: 1
OSPF debugging status:
OSPF ISM debugging is on
OSPF NSM debugging is on
OSPF Instance: 2
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 3
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 4
OSPF debugging status:
OSPF ISM debugging is on
OSPF Instance: 5
OSPF debugging status:
OSPF ISM debugging is on
rtr#
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