Can someone please explain this?
joe@gw.pao> show route 63.223.0.0/24 detail
inet.0: 128857 destinations, 210034 routes (128853 active, 1 holddown, 4
hidden)
63.223.0.0/24 (3 entries, 1 announced)
*BGP Preference: 170/-301
Source: 209.81.63.34
Next hop: 209.81.1.1 via ge-0/1/0.41, selected
Protocol next hop: 206.223.115.47 Indirect next hop: 85e3b90
308
State: <Active Int Ext>
Local AS: 7091 Peer AS: 7091
Age: 3w5d 19:05:20 Metric: 100 Metric2: 0
Task: BGP_7091.209.81.63.34+51128
Announcement bits (3): 0-KRT 3-BGP.0.0.0.0+179 4-Resolve
inet.0
AS path: 19151 I
Communities: 7091:390
Localpref: 300
Router ID: 209.81.63.34
BGP Preference: 170/-301
Source: 216.200.254.177
Next hop: 216.200.254.177 via ge-0/1/0.44, selected
State: <Ext>
Inactive reason: AS path
Local AS: 7091 Peer AS: 6461
Age: 5:58:36 Metric: 100
Task: BGP_6461.216.200.254.177+179
AS path: 6461 19151 I
Communities: 7091:390
Localpref: 300
Router ID: 209.249.254.19
BGP Preference: 170/-101
Source: 209.81.1.1
Next hop: 209.81.1.1 via ge-0/1/0.41, selected
State: <Ext>
Inactive reason: Local Preference
Local AS: 7091 Peer AS: 6939
Age: 3w5d 12:37:20
Task: BGP_6939.209.81.1.1+179
AS path: 6939 19151 I
Communities: 7091:380
Localpref: 100
Router ID: 216.218.252.145
Ok - this would seem to indicate the correct next hop is the ibgp hop.
Now, watch the traceroute...
joe@gw.pao> traceroute as-number-lookup 63.223.0.01
traceroute to 63.223.0.01 (63.223.0.1), 30 hops max, 40 byte packets
1 gige-g0-0-7.gsr12008.pao.he.net (64.62.200.185) [AS 6939] 1.031 ms
1.073 ms 0.939 ms
2 gige-g1-0.gsr12012.pao.he.net (216.218.254.34) [AS 6939] 9.387 ms
0.848 ms 1.331 ms
3 pos7-0.gsr12012.sjc2.he.net (66.220.13.41) [AS 6939] 1.683 ms 1.899
ms 1.356 ms
4 br-1.sjc.webusenet.com (206.223.116.18) [AS 6461] 77.148 ms 76.220 ms
76.243 ms
5 ge1-25-5-sjc-b0-00.bb.ibis7.net (63.223.1.146) [AS 19151] 77.057 ms
77.078 ms 77.164 ms
6 oc48-1-37-1-atl-b0-00.bb.ibis7.net (63.223.1.17) [AS 19151] 77.350 ms
77.042 ms 77.235 ms
7 unknown63223001105.ibis7.net (63.223.1.105) [AS 19151] 76.365 ms
76.685 ms 76.342 ms
8 amm-b1-02.bb.ibis7.net (63.223.0.1) [AS 19151] 76.489 ms 77.155 ms
77.010 ms
It's taking the wrong next hop!
joe
joe@gw.pao> show route 63.223.0.0/24 detail
inet.0: 128857 destinations, 210034 routes (128853 active, 1 holddown, 4
hidden)
63.223.0.0/24 (3 entries, 1 announced)
*BGP Preference: 170/-301
Source: 209.81.63.34
Next hop: 209.81.1.1 via ge-0/1/0.41, selected
Protocol next hop: 206.223.115.47 Indirect next hop: 85e3b90
308
State: <Active Int Ext>
Local AS: 7091 Peer AS: 7091
Age: 3w5d 19:05:20 Metric: 100 Metric2: 0
Task: BGP_7091.209.81.63.34+51128
Announcement bits (3): 0-KRT 3-BGP.0.0.0.0+179 4-Resolve
inet.0
AS path: 19151 I
Communities: 7091:390
Localpref: 300
Router ID: 209.81.63.34
BGP Preference: 170/-301
Source: 216.200.254.177
Next hop: 216.200.254.177 via ge-0/1/0.44, selected
State: <Ext>
Inactive reason: AS path
Local AS: 7091 Peer AS: 6461
Age: 5:58:36 Metric: 100
Task: BGP_6461.216.200.254.177+179
AS path: 6461 19151 I
Communities: 7091:390
Localpref: 300
Router ID: 209.249.254.19
BGP Preference: 170/-101
Source: 209.81.1.1
Next hop: 209.81.1.1 via ge-0/1/0.41, selected
State: <Ext>
Inactive reason: Local Preference
Local AS: 7091 Peer AS: 6939
Age: 3w5d 12:37:20
Task: BGP_6939.209.81.1.1+179
AS path: 6939 19151 I
Communities: 7091:380
Localpref: 100
Router ID: 216.218.252.145
Ok - this would seem to indicate the correct next hop is the ibgp hop.
Now, watch the traceroute...
joe@gw.pao> traceroute as-number-lookup 63.223.0.01
traceroute to 63.223.0.01 (63.223.0.1), 30 hops max, 40 byte packets
1 gige-g0-0-7.gsr12008.pao.he.net (64.62.200.185) [AS 6939] 1.031 ms
1.073 ms 0.939 ms
2 gige-g1-0.gsr12012.pao.he.net (216.218.254.34) [AS 6939] 9.387 ms
0.848 ms 1.331 ms
3 pos7-0.gsr12012.sjc2.he.net (66.220.13.41) [AS 6939] 1.683 ms 1.899
ms 1.356 ms
4 br-1.sjc.webusenet.com (206.223.116.18) [AS 6461] 77.148 ms 76.220 ms
76.243 ms
5 ge1-25-5-sjc-b0-00.bb.ibis7.net (63.223.1.146) [AS 19151] 77.057 ms
77.078 ms 77.164 ms
6 oc48-1-37-1-atl-b0-00.bb.ibis7.net (63.223.1.17) [AS 19151] 77.350 ms
77.042 ms 77.235 ms
7 unknown63223001105.ibis7.net (63.223.1.105) [AS 19151] 76.365 ms
76.685 ms 76.342 ms
8 amm-b1-02.bb.ibis7.net (63.223.0.1) [AS 19151] 76.489 ms 77.155 ms
77.010 ms
It's taking the wrong next hop!
joe