nikmon2
commented
6 years ago Issue#2: This is not a big deal but I think it has something to do with the other issues. Pathman SR can't get the XRv hostnames I assigned to them. It is assigning some weirds numbers. Its not actually an issue cause the topology is small but I'm guessing there is something wrong with my setup
A: OSPF does not carry hostnames with bgp-ls, therefore you will see the OSPF node-ID's on your map. (isis does)
- You can get names displayed by putting your loopbacks in your /etc/hosts file - or registering them with your dns. (/etc/hosts for where pathman runs)
Cheers, Niklas
Tinbo1383
Tahir93
Hey there,
For a project @work I had to set up a simple topology to demonstrate the advantages of using SR over LDP/RSVP. So reading around I found this Pathman SR app that lets you configure dynamically SR paths over your MPLS network. So I set up a small topology, 4 XRv in EVE-NG, set up a new ubuntu VM with ODL and on top Pathman SR.
I think it went ok, but there a few things that I'm still struggling at and wanted to know if you guys can be of any help.
So, first of all, like I said, I have 4 XRv routers, but, only 3 of them are recognized as SR ready/PCEP ready and one of them is not. This is the log for that:
3586 2017-12-31 18:02:50.116 UTC root:node_sr_update INFO: SR sid updated for: 67372036 from bgp 3586 2017-12-31 18:02:50.116 UTC root:node_sr_update INFO: SR sid updated for: 16843009 from bgp 3586 2017-12-31 18:02:50.116 UTC root:node_sr_update ERROR: No BGP SID for: 33686018 3586 2017-12-31 18:02:50.116 UTC root:node_sr_update INFO: SR sid updated for: 50529027 from bgp
it seems the issue has to do with something called "termination-point" but it's weird cause thats actually the node that is directly connected to the VM with ODL/Pathman SR
3586 2017-12-31 18:03:18.712 UTC root:add_node INFO: New node: Node(name=u'67372036', id=u'67372036', loopback=u'4.4.4.4', portlist=[u'10.10.24.4', u'10.10.34.4'], pcc=u'pcc://4.4.4.4', pcep_type='07' , prefix=[u'10.10.24.0/24', u'10.10.34.0/24', u'4.4.4.4/32'], sid='') 3586 2017-12-31 18:03:18.930 UTC root:add_node INFO: New node: Node(name=u'16843009', id=u'16843009', loopback=u'1.1.1.1', portlist=[u'10.10.12.1', u'10.10.13.1'], pcc=u'pcc://1.1.1.1', pcep_type='07' , prefix=[u'1.1.1.1/32', u'10.10.12.0/24', u'10.10.13.0/24'], sid='') 3586 2017-12-31 18:03:18.931 UTC root:node_structure ERROR: Node 33686018 is missing 'termination-point' 3586 2017-12-31 18:03:18.931 UTC root:add_node INFO: New node: Node(name=u'33686018', id=u'33686018', loopback='', portlist=[], pcc='', pcep_type='', prefix=[u'10.10.12.0/24', u'10.10.23.0/24', u'10.1 0.24.0/24', u'192.168.1.0/30'], sid='') 3586 2017-12-31 18:03:19.137 UTC root:add_node INFO: Updated node: Node(name=u'33686018', id=u'33686018', loopback='', portlist=[u'10.10.12.2', u'10.10.23.2', u'10.10.24.2'], pcc='', pcep_type='', pre fix=[u'10.10.12.0/24', u'10.10.23.0/24', u'10.10.24.0/24', u'192.168.1.0/30', u'2.2.2.2/32'], sid='') 3586 2017-12-31 18:03:19.335 UTC root:add_node INFO: New node: Node(name=u'50529027', id=u'50529027', loopback=u'3.3.3.3', portlist=[u'10.10.13.3', u'10.10.23.3', u'10.10.34.3'], pcc=u'pcc://3.3.3.3', pcep_type='07', prefix=[u'10.10.13.0/24', u'10.10.23.0/24', u'10.10.34.0/24', u'3.3.3.3/32'], sid='')
All XRv routers has the same config, something like this:
router ospf 1 distribute bgp-ls router-id 2.2.2.2 segment-routing mpls redistribute connected area 0 mpls traffic-eng segment-routing mpls interface Loopback0 passive enable prefix-sid index 2001 ! interface GigabitEthernet0/0/0/0 network point-to-point fast-reroute per-prefix fast-reroute per-prefix ti-lfa enable ! interface GigabitEthernet0/0/0/1 network point-to-point fast-reroute per-prefix fast-reroute per-prefix ti-lfa enable ! interface GigabitEthernet0/0/0/2 network point-to-point fast-reroute per-prefix fast-reroute per-prefix ti-lfa enable ! ! mpls traffic-eng router-id 2.2.2.2 ! router bgp 1 bgp router-id 2.2.2.2 address-family ipv4 unicast ! address-family link-state link-state ! neighbor 1.1.1.1 remote-as 1 update-source Loopback0 address-family ipv4 unicast route-reflector-client ! ! neighbor 3.3.3.3 remote-as 1 update-source Loopback0 address-family ipv4 unicast ! ! neighbor 4.4.4.4 remote-as 1 update-source Loopback0 address-family ipv4 unicast route-reflector-client ! ! neighbor 192.168.1.2 remote-as 1 update-source GigabitEthernet0/0/0/3 address-family ipv4 unicast route-reflector-client ! address-family link-state link-state route-reflector-client ! ! ! mpls traffic-eng pce peer source ipv4 2.2.2.2 peer ipv4 192.168.1.2 ! segment-routing logging events peer-status stateful-client instantiation cisco-extension ! ! auto-tunnel pcc tunnel-id min 15 max 99 ! reoptimize timers delay installation 0 ! end
Issue#2: This is not a big deal but I think it has something to do with the other issues. Pathman SR can't get the XRv hostnames I assigned to them. It is assigning some weirds numbers. Its not actually an issue cause the topology is small but I'm guessing there is something wrong with my setup.
Issue#3: I have configured a TE Tunnel with SR manually but it doesn't appear on Pathman SR
RP/0/0/CPU0:P1#sh mpls traffic-eng tunnels 14 Sun Dec 31 18:51:27.659 UTC
Name: tunnel-te14 Destination: 4.4.4.4 Ifhandle:0x90 Signalled-Name: P1_t14 Status: Admin: up Oper: up Path: valid Signalling: connected
Config Parameters: Bandwidth: 0 kbps (CT0) Priority: 7 7 Affinity: 0x0/0x0 Metric Type: TE (global) Path Selection: Tiebreaker: Min-fill (default) Protection: any (default) Hop-limit: disabled Cost-limit: disabled Path-invalidation timeout: 10000 msec (default), Action: Tear (default) AutoRoute: enabled LockDown: disabled Policy class: not set Forward class: 0 (default) Forwarding-Adjacency: disabled Autoroute Destinations: 0 Loadshare: 0 equal loadshares Auto-bw: disabled Path Protection: Not Enabled BFD Fast Detection: Disabled Reoptimization after affinity failure: Enabled SRLG discovery: Disabled History: Tunnel has been up for: 01:31:31 (since Sun Dec 31 17:19:56 UTC 2017) Current LSP: Uptime: 01:31:26 (since Sun Dec 31 17:20:01 UTC 2017) Prior LSP: ID: 3 Path Option: 10 Removal Trigger: reoptimization completed
Segment-Routing Path Info (OSPF 1 area 0) Segment0[Node]: 2.2.2.2, Label: 18001 Segment1[Node]: 3.3.3.3, Label: 19001 Segment2[Node]: 4.4.4.4, Label: 20001 Displayed 1 (of 1) heads, 0 (of 0) midpoints, 0 (of 0) tails Displayed 1 up, 0 down, 0 recovering, 0 recovered heads
My question is, do all SR paths in the network appear on Pathman SR app or just the ones you configure using the app?
Issue#4: When I tried to set up the new path and deploy it using Pathman SR I got the following error:
3586 2017-12-31 18:20:24.461 UTC root:initialize INFO: Init 2 done - debug saved 3586 2017-12-31 18:20:24.461 UTC root:rest_interface_parser INFO: Commands Relieved: {u'option': u'list_all'} 3586 2017-12-31 18:20:24.468 UTC root:get_url INFO: Url get Status: 200 3586 2017-12-31 18:20:24.468 UTC root:listAllLsp INFO: list: [], formatted: [] 3586 2017-12-31 18:20:24.469 UTC root:post INFO: {"response": [{"list": [], "option": "list_all", "success": true}]} 3586 2017-12-31 18:21:38.063 UTC root:initialize INFO: Init 2 done - debug saved 3586 2017-12-31 18:21:38.064 UTC root:rest_interface_parser INFO: Commands Relieved: {u'src': u'16843009', u'dst': u'67372036', u'option': u'path', u'metric': u'igp'} 3586 2017-12-31 18:21:38.064 UTC root:post INFO: {"response": [{"path": [["16843009", "50529027", "67372036"]], "metric": [2], "option": "path", "success": true}]} 3586 2017-12-31 18:21:50.909 UTC root:initialize INFO: Init 2 done - debug saved 3586 2017-12-31 18:21:50.911 UTC root:rest_interface_parser INFO: Commands Relieved: {u'path': [u'16843009', u'50529027', u'67372036'], u'option': u'create', u'name': u'TEST-PATHMAN'} 3586 2017-12-31 18:21:50.913 UTC root:get_loop_list INFO: Path: [u'16843009', u'50529027', u'67372036'] 3586 2017-12-31 18:21:50.913 UTC root:get_loop_list INFO: Loop list: [u'3.3.3.3', u'4.4.4.4'] 3586 2017-12-31 18:21:50.913 UTC root:get_sid_list INFO: Path: [u'16843009', u'50529027', u'67372036'] 3586 2017-12-31 18:21:50.913 UTC root:get_sid_list INFO: SID list: [19001, 20001] 3586 2017-12-31 18:21:51.522 UTC root:createSRtunnel INFO: Create SR Tunnel response: {u'output': {u'failure': u'failed', u'error': [{u'error-object': {u'ignore': False, u'processing-rule': False, u'type' : 4, u'value': 2}}]}} 3586 2017-12-31 18:21:53.526 UTC root:post INFO: {"response": [{"cause": {"failure": "failed", "error": [{"error-object": {"ignore": false, "processing-rule": false, "type": 4, "value": 2}}]}, "op tion": "create", "success": false}]} 3586 2017-12-31 18:21:53.536 UTC root:initialize INFO: Init 2 done - debug saved 3586 2017-12-31 18:21:53.536 UTC root:rest_interface_parser INFO: Commands Relieved: {u'option': u'list_all'} 3586 2017-12-31 18:21:53.545 UTC root:get_url INFO: Url get Status: 200 3586 2017-12-31 18:21:53.545 UTC root:listAllLsp INFO: list: [], formatted: [] 3586 2017-12-31 18:21:53.546 UTC root:post INFO: {"response": [{"list": [], "option": "list_all", "success": true}]}
Type 4 Value 2, what does it mean?
Well, I think all issues are connected somehow but I wanted to separate them so we can tackle them one by one.
Thanks a lot guys and by the way this is an amazing project!
Jose Jimbo