Hi All, I further modified the configuration and observed that issue is seen when mpls route is present in the configuration. Please find the simplified configuration to reproduce the issue. Here MPLS route is used to pop the label do ipv4 forwarding
*Device configuration* *Node 1:* set interface ip address memif32321/32321 23.0.0.2/24 *mpls local-label add 2003 non-eos via 23.0.0.3 memif32321/32321 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 memif32321/32321 23.0.0.3/24 *mpls local-label add 2002 non-eos via 23.0.0.2 memif32321/32321 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 Thanks and Regards, Sudhir On Thu, Jun 17, 2021 at 2:32 PM Benoit Ganne (bganne) <bga...@cisco.com> wrote: > Hi Sudhir, > > It went through and this is the 3rd time now, but AFAICS you still did not > address Neale's point: > https://lists.fd.io/g/vpp-dev/message/19554?p=,,,20,0,0,0::Created,,infinite+loop,20,2,0,83418156 > > Best > ben > > > -----Original Message----- > > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of Sudhir CR > via > > lists.fd.io > > Sent: jeudi 17 juin 2021 10:59 > > To: vpp-dev@lists.fd.io > > Subject: Re: [vpp-dev] Infinite loop in fib_walk_sync > > > > Hi All, > > > > I am resending the same again as i am not sure the former one had reached > > the forum. > > > > Regards, > > Sudhir. > > > > On Thu, Jun 17, 2021 at 1:15 PM Sudhir CR via lists.fd.io > > <http://lists.fd.io> <sudhir=rtbrick....@lists.fd.io > > <mailto:rtbrick....@lists.fd.io> > wrote: > > > > > > 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 <http://192.0.0.2/24> > > set interface ip address loop0 192::2/128 > > > > set interface ip address memif32321/32321 23.0.0.2/24 > > <http://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 <http://192.0.0.3/24> > > > > set interface ip address loop0 192::3/128 > > > > set interface ip address memif32321/32321 23.0.0.3/24 > > <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 <http://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 > > > > > > > > NOTICE TO RECIPIENT This e-mail message and any attachments are > > confidential and may be privileged. If you received this e-mail in error, > > any review, use, dissemination, distribution, or copying of this e-mail > is > > strictly prohibited. Please notify us immediately of the error by return > > e-mail and please delete this message from your system. For more > > information about Rtbrick, please visit us at www.rtbrick.com > > <http://www.rtbrick.com> > > > > > > > > > > > > NOTICE TO RECIPIENT This e-mail message and any attachments are > > confidential and may be privileged. If you received this e-mail in error, > > any review, use, dissemination, distribution, or copying of this e-mail > is > > strictly prohibited. Please notify us immediately of the error by return > > e-mail and please delete this message from your system. For more > > information about Rtbrick, please visit us at www.rtbrick.com > > <http://www.rtbrick.com> > -- NOTICE TO RECIPIENT This e-mail message and any attachments are confidential and may be privileged. 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