Hi All,
We have been using vpp with our stack for the 6PE solution for some time.
But when we recently enabled BFD in vpp we are observing an infinite loop
with the below call stack.
Any help in resolving this issue would be appreciated .
(gdb) thread apply all bt
Thread 3 (Thread 0x7f6d27bfe700 (LWP 449)):
#0 0x00007f6dc79d4007 in vlib_worker_thread_barrier_check () at
/home/supervisor/libvpp/src/vlib/threads.h:438
#1 0x00007f6dc79ce52e in vlib_main_or_worker_loop (vm=0x7f6da5f9b6c0,
is_main=0) at /home/supervisor/libvpp/src/vlib/main.c:1788
#2 0x00007f6dc79cdd47 in vlib_worker_loop (vm=0x7f6da5f9b6c0) at
/home/supervisor/libvpp/src/vlib/main.c:2008
#3 0x00007f6dc7a2592a in vlib_worker_thread_fn (arg=0x7f6da3593180) at
/home/supervisor/libvpp/src/vlib/threads.c:1862
#4 0x00007f6dc724bc34 in clib_calljmp () at
/home/supervisor/libvpp/src/vppinfra/longjmp.S:123
#5 0x00007f6d27bfdec0 in ?? ()
#6 0x00007f6dc7a1dad3 in vlib_worker_thread_bootstrap_fn
(arg=0x7f6da3593180) at /home/supervisor/libvpp/src/vlib/threads.c:585
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
Thread 2 (Thread 0x7f6d283ff700 (LWP 448)):
#0 0x00007f6dc79d3ffe in vlib_worker_thread_barrier_check () at
/home/supervisor/libvpp/src/vlib/threads.h:438
#1 0x00007f6dc79ce52e in vlib_main_or_worker_loop (vm=0x7f6da5f9a200,
is_main=0) at /home/supervisor/libvpp/src/vlib/main.c:1788
#2 0x00007f6dc79cdd47 in vlib_worker_loop (vm=0x7f6da5f9a200) at
/home/supervisor/libvpp/src/vlib/main.c:2008
#3 0x00007f6dc7a2592a in vlib_worker_thread_fn (arg=0x7f6da3593080) at
/home/supervisor/libvpp/src/vlib/threads.c:1862
#4 0x00007f6dc724bc34 in clib_calljmp () at
/home/supervisor/libvpp/src/vppinfra/longjmp.S:123
#5 0x00007f6d283feec0 in ?? ()
#6 0x00007f6dc7a1dad3 in vlib_worker_thread_bootstrap_fn
(arg=0x7f6da3593080) at /home/supervisor/libvpp/src/vlib/threads.c:585
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
Thread 1 (Thread 0x7f6dd47c2240 (LWP 226)):
#0 0x00007f6dc723c2dc in hash_header (v=0x7f6da6870e18) at
/home/supervisor/libvpp/src/vppinfra/hash.h:113
#1 0x00007f6dc723d329 in get_pair (v=0x7f6da6870e18, i=55) at
/home/supervisor/libvpp/src/vppinfra/hash.c:58
#2 0x00007f6dc723c372 in lookup (v=0x7f6da6870e18, key=140108524924744,
op=GET, new_value=0x0, old_value=0x0)
at /home/supervisor/libvpp/src/vppinfra/hash.c:557
#3 0x00007f6dc723c261 in _hash_get (v=0x7f6da6870e18, key=140108524924744)
at /home/supervisor/libvpp/src/vppinfra/hash.c:641
#4 0x00007f6dc8bbb5f4 in adj_nbr_find (nh_proto=FIB_PROTOCOL_IP4,
link_type=VNET_LINK_MPLS, nh_addr=0x7f6da6866c30, sw_if_index=8)
at /home/supervisor/libvpp/src/vnet/adj/adj_nbr.c:124
#5 0x00007f6dc8bbb661 in adj_nbr_add_or_lock (nh_proto=FIB_PROTOCOL_IP4,
link_type=VNET_LINK_MPLS, nh_addr=0x7f6da6866c30, sw_if_index=8)
at /home/supervisor/libvpp/src/vnet/adj/adj_nbr.c:243
#6 0x00007f6dc8b904db in fib_path_attached_next_hop_get_adj
(path=0x7f6da6866c18, link=VNET_LINK_MPLS, dpo=0x7f6d8edbb168)
at /home/supervisor/libvpp/src/vnet/fib/fib_path.c:674
#7 0x00007f6dc8b8ffb0 in fib_path_contribute_forwarding (path_index=58,
fct=FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS, dpo=0x7f6d8edbb168)
at /home/supervisor/libvpp/src/vnet/fib/fib_path.c:2475
---Type <return> to continue, or q <return> to quit---
#8 0x00007f6dc8b98399 in fib_path_ext_stack (path_ext=0x7f6da42ab220,
child_fct=FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
imp_null_fct=FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS, nhs=0x7f6da8718a80) at
/home/supervisor/libvpp/src/vnet/fib/fib_path_ext.c:241
#9 0x00007f6dc8b6e293 in fib_entry_src_collect_forwarding (pl_index=50,
path_index=58, arg=0x7f6d8edbb380)
at /home/supervisor/libvpp/src/vnet/fib/fib_entry_src.c:476
#10 0x00007f6dc8b8926d in fib_path_list_walk (path_list_index=50,
func=0x7f6dc8b6e100 <fib_entry_src_collect_forwarding>, ctx=0x7f6d8edbb380)
at /home/supervisor/libvpp/src/vnet/fib/fib_path_list.c:1408
#11 0x00007f6dc8b6da44 in fib_entry_src_mk_lb (fib_entry=0x7f6da6868730,
esrc=0x7f6da75b11c0, fct=FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS,
dpo_lb=0x7f6da6868758) at
/home/supervisor/libvpp/src/vnet/fib/fib_entry_src.c:576
#12 0x00007f6dc8b6e6d3 in fib_entry_src_action_install
(fib_entry=0x7f6da6868730, source=FIB_SOURCE_CLI)
at /home/supervisor/libvpp/src/vnet/fib/fib_entry_src.c:706
#13 0x00007f6dc8b6f5ff in fib_entry_src_action_reactivate
(fib_entry=0x7f6da6868730, source=FIB_SOURCE_CLI)
at /home/supervisor/libvpp/src/vnet/fib/fib_entry_src.c:1222
#14 0x00007f6dc8b6c5c2 in fib_entry_back_walk_notify (node=0x7f6da6868730,
ctx=0x7f6d8edbb668)
at /home/supervisor/libvpp/src/vnet/fib/fib_entry.c:316
#15 0x00007f6dc8b648c2 in fib_node_back_walk_one (ptr=0x7f6d8edbb688,
ctx=0x7f6d8edbb668)
at /home/supervisor/libvpp/src/vnet/fib/fib_node.c:161
#16 0x00007f6dc8b4f36a in fib_walk_advance (fwi=1) at
/home/supervisor/libvpp/src/vnet/fib/fib_walk.c:368
#17 0x00007f6dc8b4ff00 in* fib_walk_sync *(parent_type=FIB_NODE_TYPE_PATH_LIST,
parent_index=50, ctx=0x7f6d8edbb828)
at /home/supervisor/libvpp/src/vnet/fib/fib_walk.c:792
#18 0x00007f6dc8b7f896 in fib_path_list_back_walk (path_list_index=50,
ctx=0x7f6d8edbb828)
at /home/supervisor/libvpp/src/vnet/fib/fib_path_list.c:500
#19 0x00007f6dc8b977b5 in fib_path_back_walk_notify (node=0x7f6da6866c18,
ctx=0x7f6d8edbb828)
at /home/supervisor/libvpp/src/vnet/fib/fib_path.c:1226
#20 0x00007f6dc8b648c2 in fib_node_back_walk_one (ptr=0x7f6d8edbb848,
ctx=0x7f6d8edbb828)
at /home/supervisor/libvpp/src/vnet/fib/fib_node.c:161
#21 0x00007f6dc8b4f36a in fib_walk_advance (fwi=0) at
/home/supervisor/libvpp/src/vnet/fib/fib_walk.c:368
#22 0x00007f6dc8b4ff00 in *fib_walk_sync* (parent_type=FIB_NODE_TYPE_ADJ,
parent_index=4, ctx=0x7f6d8edbb8e0)
at /home/supervisor/libvpp/src/vnet/fib/fib_walk.c:792
#23 0x00007f6dc8be9420 in adj_bfd_update_walk (ai=4) at
/home/supervisor/libvpp/src/vnet/adj/adj_bfd.c:105
#24 0x00007f6dc8be8917 in adj_bfd_notify (event=BFD_LISTEN_EVENT_UPDATE,
session=0x7f6da6871e38)
at /home/supervisor/libvpp/src/vnet/adj/adj_bfd.c:198
#25 0x00007f6dc85f77aa in bfd_notify_listeners (bm=0x7f6dc91b7830
<bfd_main>, event=BFD_LISTEN_EVENT_UPDATE, bs=0x7f6da6871e38)
at /home/supervisor/libvpp/src/vnet/bfd/bfd_main.c:450
#26 0x00007f6dc85ff9ca in bfd_rpc_notify_listeners_cb (a=0x13008a121) at
/home/supervisor/libvpp/src/vnet/bfd/bfd_main.c:617
#27 0x00007f6dc9210754 in vl_api_rpc_call_t_handler (mp=0x13008a108) at
/home/supervisor/libvpp/src/vlibmemory/vlib_api.c:531
---Type <return> to continue, or q <return> to quit---
#28 0x00007f6dc922706f in vl_msg_api_handler_with_vm_node
(am=0x7f6dc943ad18 <api_global_main>, vlib_rp=0x130027000,
the_msg=0x13008a108,
vm=0x7f6dc7c8dc40 <vlib_global_main>, node=0x7f6da3544300, is_private=0
'\000') at /home/supervisor/libvpp/src/vlibapi/api_shared.c:635
#29 0x00007f6dc91e2c4b in vl_mem_api_handle_rpc (vm=0x7f6dc7c8dc40
<vlib_global_main>, node=0x7f6da3544300)
at /home/supervisor/libvpp/src/vlibmemory/memory_api.c:746
#30 0x00007f6dc9204797 in vl_api_clnt_process (vm=0x7f6dc7c8dc40
<vlib_global_main>, node=0x7f6da3544300, f=0x0)
at /home/supervisor/libvpp/src/vlibmemory/vlib_api.c:337
#31 0x00007f6dc79d38ed in vlib_process_bootstrap (_a=140108875679720) at
/home/supervisor/libvpp/src/vlib/main.c:1464
#32 0x00007f6dc724bc34 in clib_calljmp () at
/home/supervisor/libvpp/src/vppinfra/longjmp.S:123
#33 0x00007f6da3c3c7e0 in ?? ()
#34 0x00007f6dc79d332f in vlib_process_startup (vm=0x114a3c3c850,
p=0x2fd93782948b32, f=0x114)
at /home/supervisor/libvpp/src/vlib/main.c:1489
*VPP version* : 20.09
*Steps to reproduce* :
================
*Device configuration*
*node 1:*
set interface ip address loop0 192.0.0.2/24
set interface ip address loop0 192::2/128
set interface ip address memif32321/32321 23.0.0.2/24
ip route add 192::3/128 table 0 via 23.0.0.3 memif32321/32321
ip route add 192::3/128 table 2 via 23.0.0.3 memif32321/32321
mpls local-label add 20001 eos via ip6-lookup-in-table 0
mpls local-label add 2003 non-eos via 23.0.0.3 memif32321/32321
ip4-lookup-in-table 0 out-labels 3
bfd udp session add interface memif32321/32321 local-addr 23.0.0.2
peer-addr 23.0.0.3 desired-min-tx 400000 required-min-rx 400000 detect-mult
3
*node 2:*
set interface ip address loop0 192.0.0.3/24
set interface ip address loop0 192::3/128
set interface ip address memif32321/32321 23.0.0.3/24
ip route add 192::2/128 table 0 via 23.0.0.2 memif32321/32321
ip route add 192::2/128 table 2 via 23.0.0.2 memif32321/32321
mpls local-label add 20001 eos via ip6-lookup-in-table 0
mpls local-label add 2002 non-eos via 23.0.0.2 memif32321/32321
ip4-lookup-in-table 0 out-labels 3
*bfd udp session add interface memif32321/32321 local-addr 23.0.0.3
peer-addr 23.0.0.2 desired-min-tx 400000 required-min-rx 400000 detect-mult
3 <-- issue is seen after executing this command*
*FIB tables output on node 2*
ipv4-VRF:0
Router Address: 0.0.0.0, fib_index:0, flow hash:[src dst sport dport proto
] epoch:0 flags:none locks:[adjacency:1, default-route:1, nat-hi:2, ]
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:1 buckets:1 uRPF:0 to:[0:0]]
[0] [@0]: dpo-drop ip4
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:2 buckets:1 uRPF:1 to:[0:0]]
[0] [@0]: dpo-drop ip4
23.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:45 buckets:1 uRPF:45 to:[0:0]]
[0] [@0]: dpo-drop ip4
23.0.0.2/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:52 buckets:1 uRPF:48 to:[0:0]
via:[2:176]]
[0] [@5]: ipv4 via 23.0.0.2 memif32321/32321: mtu:9000 next:3
7a24276404047a1ce86404040800
23.0.0.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:44 buckets:1 uRPF:44 to:[0:0]]
[0] [@4]: ipv4-glean: memif32321/32321: mtu:9000 next:2
ffffffffffff7a1ce86404040806
23.0.0.3/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:47 buckets:1 uRPF:49 to:[2:176]]
[0] [@2]: dpo-receive: 23.0.0.3 on memif32321/32321
23.0.0.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:46 buckets:1 uRPF:47 to:[0:0]]
[0] [@0]: dpo-drop ip4
192.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:37 buckets:1 uRPF:35 to:[0:0]]
[0] [@0]: dpo-drop ip4
192.0.0.0/24
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:36 buckets:1 uRPF:34 to:[0:0]]
[0] [@4]: ipv4-glean: loop0: mtu:9000 next:1
ffffffffffffdead000000000806
192.0.0.3/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:39 buckets:1 uRPF:39 to:[0:0]]
[0] [@2]: dpo-receive: 192.0.0.3 on loop0
192.0.0.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:38 buckets:1 uRPF:37 to:[0:0]]
[0] [@0]: dpo-drop ip4
224.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:4 buckets:1 uRPF:3 to:[0:0]]
[0] [@0]: dpo-drop ip4
240.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:3 buckets:1 uRPF:2 to:[0:0]]
[0] [@0]: dpo-drop ip4
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:5 buckets:1 uRPF:4 to:[0:0]]
[0] [@0]: dpo-drop ip4
ipv4-VRF:1
Router Address: 0.0.0.0, fib_index:2, flow hash:[src dst sport dport proto
] epoch:0 flags:none locks:[API:1, ]
0.0.0.0/0
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:23 buckets:1 uRPF:20 to:[0:0]]
[0] [@0]: dpo-drop ip4
0.0.0.0/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:24 buckets:1 uRPF:21 to:[0:0]]
[0] [@0]: dpo-drop ip4
224.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:26 buckets:1 uRPF:23 to:[0:0]]
[0] [@0]: dpo-drop ip4
240.0.0.0/4
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:25 buckets:1 uRPF:22 to:[0:0]]
[0] [@0]: dpo-drop ip4
255.255.255.255/32
unicast-ip4-chain
[@0]: dpo-load-balance: [proto:ip4 index:27 buckets:1 uRPF:24 to:[0:0]]
[0] [@0]: dpo-drop ip4
DBGvpp# show ip6 fib
ipv6-VRF:0
Router Address: 0.0.0.0, fib_index:0, flow hash:[src dst sport dport proto
] epoch:0 flags:none locks:[recursive-resolution:1, default-route:1, ]
::/0
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:6 buckets:1 uRPF:5 to:[0:0]]
[0] [@0]: dpo-drop ip6
192::2/128
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:48 buckets:1 uRPF:52 to:[0:0]]
[0] [@5]: ipv6 via 23.0.0.2 memif32321/32321: mtu:9000 next:4
7a24276404047a1ce864040486dd
192::3/128
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:43 buckets:1 uRPF:43 to:[0:0]]
[0] [@2]: dpo-receive: 192::3 on loop0
fe80::/10
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:7 buckets:1 uRPF:6 to:[0:0]]
[0] [@14]: ip6-link-local
ipv6-VRF:2
Router Address: 0.0.0.0, fib_index:2, flow hash:[src dst sport dport proto
] epoch:0 flags:none locks:[API:1, ]
::/0
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:28 buckets:1 uRPF:25 to:[0:0]]
[0] [@0]: dpo-drop ip6
192::2/128
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:49 buckets:1 uRPF:52 to:[0:0]]
[0] [@5]: ipv6 via 23.0.0.2 memif32321/32321: mtu:9000 next:4
7a24276404047a1ce864040486dd
fe80::/10
unicast-ip6-chain
[@0]: dpo-load-balance: [proto:ip6 index:29 buckets:1 uRPF:26 to:[0:0]]
[0] [@14]: ip6-link-local
DBGvpp# show mpls fib
, fib_index:0 locks:[API:1, ]
ip4-explicit-null:neos/21 fib:0 index:17 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[23] locks:2 flags:exclusive, uPRF-list:17 len:0 itfs:[]
path:[23] pl-index:23 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's mpls table
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:20 buckets:1 uRPF:17 to:[0:0]]
[0] [@4]: dst-address,unicast lookup in interface's mpls table
ip4-explicit-null:eos/21 fib:0 index:16 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[22] locks:2 flags:exclusive, uPRF-list:16 len:0 itfs:[]
path:[22] pl-index:22 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's ip4 table
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:19 buckets:1 uRPF:16 to:[0:0]]
[0] [@3]: dst-address,unicast lookup in interface's ip4 table
router-alert:neos/21 fib:0 index:14 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[20] locks:2 flags:exclusive, uPRF-list:14 len:0 itfs:[]
path:[20] pl-index:20 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dpo-punt
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:17 buckets:1 uRPF:14 to:[0:0]]
[0] [@2]: dpo-punt
router-alert:eos/21 fib:0 index:15 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[21] locks:2 flags:exclusive, uPRF-list:15 len:0 itfs:[]
path:[21] pl-index:21 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dpo-punt
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:18 buckets:1 uRPF:15 to:[0:0]]
[0] [@2]: dpo-punt
ipv6-explicit-null:neos/21 fib:0 index:19 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[25] locks:2 flags:exclusive, uPRF-list:19 len:0 itfs:[]
path:[25] pl-index:25 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's mpls table
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:22 buckets:1 uRPF:19 to:[0:0]]
[0] [@4]: dst-address,unicast lookup in interface's mpls table
ipv6-explicit-null:eos/21 fib:0 index:18 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[24] locks:2 flags:exclusive, uPRF-list:18 len:0 itfs:[]
path:[24] pl-index:24 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's ip6 table
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:21 buckets:1 uRPF:18 to:[0:0]]
[0] [@5]: dst-address,unicast lookup in interface's ip6 table
, fib_index:1 locks:[API:1, ]
ip4-explicit-null:neos/21 fib:1 index:30 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[36] locks:2 flags:exclusive, uPRF-list:30 len:0 itfs:[]
path:[36] pl-index:36 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's mpls table
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:33 buckets:1 uRPF:30 to:[0:0]]
[0] [@4]: dst-address,unicast lookup in interface's mpls table
ip4-explicit-null:eos/21 fib:1 index:29 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[35] locks:2 flags:exclusive, uPRF-list:29 len:0 itfs:[]
path:[35] pl-index:35 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's ip4 table
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:32 buckets:1 uRPF:29 to:[0:0]]
[0] [@3]: dst-address,unicast lookup in interface's ip4 table
router-alert:neos/21 fib:1 index:27 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[33] locks:2 flags:exclusive, uPRF-list:27 len:0 itfs:[]
path:[33] pl-index:33 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dpo-punt
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:30 buckets:1 uRPF:27 to:[0:0]]
[0] [@2]: dpo-punt
router-alert:eos/21 fib:1 index:28 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[34] locks:2 flags:exclusive, uPRF-list:28 len:0 itfs:[]
path:[34] pl-index:34 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dpo-punt
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:31 buckets:1 uRPF:28 to:[0:0]]
[0] [@2]: dpo-punt
ipv6-explicit-null:neos/21 fib:1 index:32 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[38] locks:2 flags:exclusive, uPRF-list:32 len:0 itfs:[]
path:[38] pl-index:38 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's mpls table
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:35 buckets:1 uRPF:32 to:[0:0]]
[0] [@4]: dst-address,unicast lookup in interface's mpls table
ipv6-explicit-null:eos/21 fib:1 index:31 locks:2
special refs:1 entry-flags:exclusive, src-flags:added,contributing,active,
path-list:[37] locks:2 flags:exclusive, uPRF-list:31 len:0 itfs:[]
path:[37] pl-index:37 mpls weight=1 pref=0 exclusive:
oper-flags:resolved, cfg-flags:exclusive,
[@0]: dst-address,unicast lookup in interface's ip6 table
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:34 buckets:1 uRPF:31 to:[0:0]]
[0] [@5]: dst-address,unicast lookup in interface's ip6 table
2002:neos/21 fib:1 index:48 locks:2
CLI refs:1 src-flags:added,contributing,active,
path-list:[50] locks:6 flags:shared, uPRF-list:52 len:1 itfs:[8, ]
path:[58] pl-index:50 ip4 weight=1 pref=0 attached-nexthop:
oper-flags:resolved,
23.0.0.2 memif32321/32321
[@0]: ipv4 via 23.0.0.2 memif32321/32321: mtu:9000 next:3
7a24276404047a1ce86404040800
Extensions:
path:58 mpls-flags:[no-ip-tll-decr] labels:[[implicit-null pipe ttl:0
exp:0]]
forwarding: mpls-neos-chain
[@0]: dpo-load-balance: [proto:mpls index:51 buckets:1 uRPF:52 to:[0:0]]
[0] [@8]: mpls via 23.0.0.2 memif32321/32321: mtu:9000 next:2
7a24276404047a1ce86404048847
20001:eos/21 fib:1 index:47 locks:2
CLI refs:1 src-flags:added,contributing,active,
path-list:[52] locks:2 flags:shared, uPRF-list:50 len:0 itfs:[]
path:[60] pl-index:52 ip6 weight=1 pref=0 deag: oper-flags:resolved,
fib-index:0
forwarding: mpls-eos-chain
[@0]: dpo-load-balance: [proto:mpls index:50 buckets:1 uRPF:50 to:[0:0]]
[0] [@6]: mpls-disposition:[0]:[rpf-id:-1 ip6, pipe]
[@5]: dst-address,unicast lookup in ipv6-VRF:0
Router Address: 0.0.0.0
Thanks and Regards,
Sudhir
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