Experts, in the simple Olive 10.2R1.8 setup described below 'ping mpls' fails from R1 to R6; by monitoring traffic on R3 I see that R3 receives the ping mpls, it replies but it doesn't forward it to R6. Notice that if I replace Olive R6 with a real M7i it works. Any idea why the LSP-PING stops at R3? and how to fix it? Thanks, Luca.
R1(em6)-----(em0)R3(em3)------(em6)R6 R1-lo0.0=10.0.6.1 R3-lo0.0=10.0.3.3 R6-lo0.0=10.0.9.6 Plain ISIS, LDP. b...@r1> show route table inet.3 inet.3: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden) + = Active Route, - = Last Active, * = Both 10.0.3.3/32 *[LDP/9] 00:00:03, metric 1 > to 10.0.4.13 via em6.0 10.0.6.4/32 *[LDP/9] 00:00:03, metric 1 > to 10.0.4.13 via em6.0, Push 299904 10.0.9.6/32 *[LDP/9] 00:00:03, metric 1 > to 10.0.4.13 via em6.0, Push 299856 b...@r1> ping mpls ldp count 1 10.0.9.6/32 detail Request for seq 1, to interface 67, label 299856, packet size 80 Reply for seq 1, return code: Label switched, time: -832.238 ms Local transmit time: 2010-08-15 19:43:16 CEST 381.198 ms Remote receive time: 2010-08-15 19:43:15 CEST 548.960 ms --- lsping statistics --- 1 packets transmitted, 0 packets received, 100% packet loss 1 packets received with error status, not counted as received. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b...@r1> ping mpls ldp count 1 10.0.9.6/32 detail Request for seq 1, to interface 67, label 299856, packet size 80 Reply for seq 1, return code: Label switched, time: -831.534 ms Local transmit time: 2010-08-15 19:52:01 CEST 802.255 ms Remote receive time: 2010-08-15 19:52:00 CEST 970.721 ms Juniper PCAP Flags [Ext, In], PCAP Extension(s) total length 16 Device Media Type Extension TLV #3, length 1, value: Ethernet (1) Logical Interface Encapsulation Extension TLV #6, length 1, value: Ethernet (14) Device Interface Index Extension TLV #1, length 2, value: 8 Logical Interface Index Extension TLV #4, length 4, value: 64 -----original packet----- 0:1a:4b:91:1:6 > 0:1a:4b:91:3:0, ethertype MPLS unicast (0x8847), length 98: MPLS (label 299856, exp 7, [S], ttl 255) (tos 0x0, ttl 1, id 15341, offset 0, flags [none], proto: UDP (17), length: 80, optlength: 4 ( RA )) 10.0.6.1.52599 > 127.0.0.1.3503: [udp sum ok] LSP-PINGv1, msg-type: MPLS Echo Request (1), length: 48 reply-mode: Reply via an IPv4/IPv6 UDP packet (2) Return Code: No return code or return code contained in the Error Code TLV (0) Return Subcode: (0) Sender Handle: 0x00000000, Sequence: 1 Sender Timestamp: -10:-37:-1.313816 Receiver Timestamp: no timestamp Target FEC Stack TLV (1), length: 12 LDP IPv4 prefix subTLV (1), length: 5 10.0.9.6/32 0x0000: 0a00 0906 20 0x0000: 0001 0005 0a00 0906 2000 0000 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ b...@r3> monitor traffic interface em0 no-resolve extensive matching "udp port 3305" count 1 Address resolution is OFF. Listening on em0, capture size 1514 bytes ^C 33 packets received by filter 0 packets dropped by kernel ltosol...@r3> monitor traffic interface em0 no-resolve extensive matching "udp port 3503" count 1 Address resolution is OFF. Listening on em0, capture size 1514 bytes 19:52:00.970838 Out Juniper PCAP Flags [Ext], PCAP Extension(s) total length 16 Device Media Type Extension TLV #3, length 1, value: Ethernet (1) Logical Interface Encapsulation Extension TLV #6, length 1, value: Ethernet (14) Device Interface Index Extension TLV #1, length 2, value: 8 Logical Interface Index Extension TLV #4, length 4, value: 64 -----original packet----- 0:1a:4b:91:3:0 > 0:1a:4b:91:1:6, ethertype IPv4 (0x0800), length 74: (tos 0xc0, ttl 64, id 20387, offset 0, flags [none], proto: UDP (17), length: 60) 10.0.3.3.3503 > 10.0.6.1.50586: [udp sum ok] LSP-PINGv1, msg-type: MPLS Echo Reply (2), length: 32 reply-mode: Reply via an IPv4/IPv6 UDP packet (2) Return Code: Label switched at stack-depth 1 (8) Return Subcode: (1) Sender Handle: 0x00000000, Sequence: 1 Sender Timestamp: -10:-36:-15.802255 Receiver Timestamp: -10:-36:-16.970721 _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp