SDN Workshop. Contact: WSDN01_v0.1

Transcription

1 SDN Workshop Contact: WSDN01_v0.1 Issue Date: [Date] Revision: [xx]

2 BGP-LS - Lab SDN Workshop WSDN01_v0.1 Issue Date: [Date] Revision: [xx]

3 BGP-LS Configuration 3

4 Configuration Example Task: configure BGP-LS on Cisco IOS-XRv nodes with various parameter settings. In addition, enable BGP egress peer engineering (EPE). Pre-requisite configuration: IP address configuration on all the routers IGP (OSPF) configuration on all the routers ebgp IPv4 address-family sessions 4

5 Base Topology AS65000 AS65001 lo 0: lo 0: / / Gi0/0/0/0 Gi0/0/0/ /24 Gi0/0/0/1 Gi0/0/0/1 Gi0/0/0/0 Gi0/0/0/0.2 R1 R2 R4.4 R5 Gi0/0/0/2.4 ebgp (IPv4) ebgp.5 AS /24.3 Gi0/0/0/ /24 Gi0/0/0/0 Gi0/0/0/0.6.6 OSPF Instance 1 Area R3 lo 0: Gi0/0/0/3 Gi0/0/0/ /24 ebgp (IPv4).6 R6 AS65003 lo 0:

6 Part 1: Basic BGP-LS configuration AS65000 ebgp (BGP-LS) ebgp AS65001 lo 0: ibgp (BGP-LS) ebgp lo 0: / / Gi0/0/0/0 Gi0/0/0/ /24 Gi0/0/0/1 Gi0/0/0/1 Gi0/0/0/0 Gi0/0/0/0.2 R1 R2 R4.4 R5 Gi0/0/0/2.4 ebgp (IPv4) ebgp.5 AS65002 ibgp (BGP-LS) /24 ibgp (BGP-LS).3 Gi0/0/0/ /24 Gi0/0/0/0 Gi0/0/0/0.6.6 OSPF Instance 1 Area R3 lo 0: Gi0/0/0/3 Gi0/0/0/ /24 ebgp (IPv4).6 R6 AS65003 lo 0:

7 R1 configuration Configure ebgp session with R2 to exchange link-state information R1(config)# route-policy PASS-ALL R1(config-rpl)# pass R1(config-rpl)# end-policy! creates a route policy that allows all routes to pass through R1(config)# router bgp R1(config-bgp)# bgp router-id R1(config-bgp)# address-family ipv4 unicast R1(config-bgp)# address-family link-state link-state! enable the ipv4 unicast and link-state address families R1(config-bgp)# neighbor R1(config-bgp-nbr)# remote-as R1(config-bgp-nbr)# address-family link-state link-state R1(config-bgp-nbr)# route-policy PASS-ALL in R1(config-bgp-nbr)# route-policy PASS-ALL out! create an ebgp session with R2 and enable BGP link-state address family 7

8 R2 configuration (1) Distribute link-state information from OSPF into BGP Configure policy to pass everything R2(config)# router ospf 1 R2(config-ospf)# distribute bgp-ls R2(config-ospf)# exit! distribute OSPF link-state information into BGP R2(config)# route-policy PASS-ALL R2(config-rpl)# pass R2(config-rpl)# end-policy! creates a route policy that allows all routes to pass through 8

9 R2 configuration (2) Configure ebgp session with R2 to exchange link-state information R2(config)# router bgp R2(config-bgp)# bgp router-id R2(config-bgp)# address-family ipv4 unicast R2(config-bgp)# address-family link-state link-state! enable the ipv4 unicast and link-state address families R2(config-bgp)# neighbor R2(config-bgp-nbr)# remote-as R2(config-bgp-nbr)# address-family link-state link-state R2(config-bgp-nbr)# route-policy PASS-ALL in R2(config-bgp-nbr)# route-policy PASS-ALL out! create an ebgp session with R1 and enable BGP link-state address family 9

10 R2 configuration (3) Configure ibgp sessions with R3 and R4 to exchange link-state information R2(config-bgp)# neighbor R2(config-bgp-nbr)# remote-as R2(config-bgp-nbr)# address-family link-state link-state R2(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R3 and enable BGP link-state address family R2(config-bgp)# neighbor R2(config-bgp-nbr)# remote-as R2(config-bgp-nbr)# address-family link-state link-state R2(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R4 and enable BGP link-state address family 10

11 R3 configuration Configure ibgp sessions with R2 and R4 to exchange link-state information R3(config)# router bgp R3(config-bgp)# address-family link-state link-state! enable the link-state address families R3(config-bgp)# neighbor R3(config-bgp-nbr)# remote-as R3(config-bgp-nbr)# address-family link-state link-state R3(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R2 and enable BGP link-state address family R3(config-bgp)# neighbor R3(config-bgp-nbr)# remote-as R3(config-bgp-nbr)# address-family link-state link-state R3(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R4 and enable BGP link-state address family 11

12 R4 configuration Configure ibgp sessions with R2 and R3 to exchange link-state information R4(config)# router bgp R4(config-bgp)# address-family link-state link-state! enable the link-state address families R4(config-bgp)# neighbor R4(config-bgp-nbr)# remote-as R4(config-bgp-nbr)# address-family link-state link-state R4(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R2 and enable BGP link-state address family R4(config-bgp)# neighbor R4(config-bgp-nbr)# remote-as R4(config-bgp-nbr)# address-family link-state link-state R4(config-bgp-nbr)# update-source Loopback0! create an ibgp session with R3 and enable BGP link-state address family 12

13 R2: show routing table Show routing table of R2 RP/0/0/CPU0:R2#show ip route Codes: C - connected, S - static, R - RIP, B - BGP, (>) - Diversion path D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2 E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP i - ISIS, L1 - IS-IS level-1, L2 - IS-IS level-2 ia - IS-IS inter area, su - IS-IS summary null, * - candidate default U - per-user static route, o - ODR, L - local, G - DAGR, l - LISP A - access/subscriber, a - Application route M - mobile route, r - RPL, (!) - FRR Backup path Gateway of last resort is not set C L C L O L O O C L /24 is directly connected, 10:15:30, GigabitEthernet0/0/0/ /32 is directly connected, 10:15:30, GigabitEthernet0/0/0/ /24 is directly connected, 10:15:30, GigabitEthernet0/0/0/ /32 is directly connected, 10:15:30, GigabitEthernet0/0/0/ /24 [110/2] via , 09:26:05, GigabitEthernet0/0/0/1 [110/2] via , 09:26:05, GigabitEthernet0/0/0/ /32 is directly connected, 10:15:30, Loopback /32 [110/2] via , 09:26:05, GigabitEthernet0/0/0/ /32 [110/2] via , 09:27:58, GigabitEthernet0/0/0/ /24 is directly connected, 10:15:30, GigabitEthernet0/0/0/ /32 is directly connected, 10:15:30, GigabitEthernet0/0/0/0 13

14 R2: show OSPF database Show OSPF database of R2 RP/0/0/CPU0:R2#show ospf database OSPF Router with ID ( ) (Process ID 1) Router Link States (Area ) Link ID ADV Router Age Seq# Checksum Link count x x00b x x0009cc x x00ebe3 5 14

15 R2: show OSPF database (cont) Show OSPF database of R2 RP/0/0/CPU0:R2#show ospf database router OSPF Router with ID ( ) (Process ID 1) Router Link States (Area ) LS age: 186 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: Advertising Router: LS Seq Number: Checksum: 0xb226 Length: 84 Number of Links: 5 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Routing Bit Set on this LSA LS age: 1131 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: Advertising Router: LS Seq Number: Checksum: 0x9cc Length: 84 Number of Links: 5 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Routing Bit Set on this LSA LS age: 1408 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: Advertising Router: LS Seq Number: Checksum: 0xebe3 Length: 84 Number of Links: 5 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: another Router (point-to-point) (Link ID) Neighboring Router ID: (Link Data) Router Interface address: Number of TOS metrics: 0 TOS 0 Metrics: 1 Link connected to: a Stub Network (Link ID) Network/subnet number: (Link Data) Network Mask: Number of TOS metrics: 0 TOS 0 Metrics: 1 15

16 R1: check BGP neighbors Check BGP neighbors of R1 RP/0/0/CPU0:R1#show bgp neighbors detail BGP neighbor is <snip> For Address Family: Link-state Link-state BGP neighbor version 107 Update group: 0.1 Filter-group: 0.1 No Refresh request being processed Route refresh request: received 3, sent 1 Policy for incoming advertisements is PASS-ALL Policy for outgoing advertisements is PASS-ALL 18 accepted prefixes, 18 are bestpaths Cumulative no. of prefixes denied: 0. Prefix advertised 0, suppressed 0, withdrawn 0 Maximum prefixes allowed Threshold for warning message 75%, restart interval 0 min An EoR was received during read-only mode Last ack version 107, Last synced ack version 0 Outstanding version objects: current 0, max 0 Additional-paths operation: None <snip> 16

17 R1: check link-state routes Check link-state routes received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state Prefix codes: E link, V node, T IP reacheable route, u/u unknown I Identifier, N local node, R remote node, L link, P prefix L1/L2 ISIS level-1/level-2, O OSPF, D direct, S static/peer-node a area-id, l link-id, t topology-id, s ISO-ID, c confed-id/asn, b bgp-identifier, r router-id, i if-address, n nbr-address, o OSPF Route-type, p IP-prefix d designated router address Network Next Hop Metric LocPrf Weight Path *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 Nodes *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 Links 17

18 R1: check link-state routes (cont.) Check link-state routes received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state Prefix codes: E link, V node, T IP reacheable route, u/u unknown I Identifier, N local node, R remote node, L link, P prefix L1/L2 ISIS level-1/level-2, O OSPF, D direct, S static/peer-node a area-id, l link-id, t topology-id, s ISO-ID, c confed-id/asn, b bgp-identifier, r router-id, i if-address, n nbr-address, o OSPF Route-type, p IP-prefix d designated router address Network Next Hop Metric LocPrf Weight Path <snip> *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 Prefixes Processed 18 prefixes, 18 paths 18

19 R1: check link-state routes (cont) Get detail of a node link-state route received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state [V][O][I0x0][N[c65001][b ][a ][r ]]/376 BGP routing table entry for [V][O][I0x0][N[c65001][b ][a ][r ]]/376 Versions: Process brib/rib SendTblVer Speaker Last Modified: Aug 27 19:41: for 00:05:16 Paths: (1 available, best #1) Not advertised to any peer Path #1: Received by speaker 0 Not advertised to any peer from ( ) Origin IGP, localpref 100, valid, external, best, group-best Received Path ID 0, Local Path ID 0, version

20 R1: check link-state routes (cont) Get detail of a link link-state route received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state [E][ O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ] [n ]]/792 BGP routing table entry for [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 Versions: Process brib/rib SendTblVer Speaker Last Modified: Aug 27 19:41: for 00:05:37 Paths: (1 available, best #1) Not advertised to any peer Path #1: Received by speaker 0 Not advertised to any peer from ( ) Origin IGP, localpref 100, valid, external, best, group-best Received Path ID 0, Local Path ID 0, version 93 Link-state: metric: 1 20

21 R1: check link-state routes (cont) Get detail of a prefix link-state route received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state [T][ O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 BGP routing table entry for [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 Versions: Process brib/rib SendTblVer Speaker Last Modified: Aug 27 19:41: for 00:05:49 Paths: (1 available, best #1) Not advertised to any peer Path #1: Received by speaker 0 Not advertised to any peer from ( ) Origin IGP, localpref 100, valid, external, best, group-best Received Path ID 0, Local Path ID 0, version 99 Link-state: Metric: 1 21

22 Part 2: BGP EPE AS65000 ebgp (BGP-LS) ebgp AS65001 lo 0: ibgp (BGP-LS) ebgp lo 0: / / Gi0/0/0/0 Gi0/0/0/ /24 Gi0/0/0/1 Gi0/0/0/1 Gi0/0/0/0 Gi0/0/0/0.2 R1 R2 R4.4 R5 Gi0/0/0/2.4 BGP EPE enabled ebgp (IPv4) ebgp.5 AS65002 ibgp (BGP-LS) /24 ibgp (BGP-LS).3 Gi0/0/0/ /24 Gi0/0/0/0 Gi0/0/0/0.6.6 OSPF Instance 1 Area R3 lo 0: Gi0/0/0/3 Gi0/0/0/ /24 ebgp (IPv4) BGP EPE enabled.6 R6 AS65003 lo 0:

23 R3 configuration Enable egress-engineering on ebgp session to R6 R3(config)# router bgp R3(config-bgp)# neighbor R3(config-bgp-nbr)# egress-engineering! Enable BGP EPE on session to R6 23

24 R4 configuration Enable egress-engineering on ebgp sessions to R5 and R6 R4(config)# router bgp R4(config-bgp)# neighbor R4(config-bgp-nbr)# egress-engineering! Enable BGP EPE on session to R5 R4(config-bgp)# neighbor R4(config-bgp-nbr)# egress-engineering! Enable BGP EPE on session to R6 24

25 R3: show BGP EPE SIDs show BGP EPE SIDs RP/0/0/CPU0:R3#show bgp egress-engineering Egress Engineering Peer Set: /32 (12d8735c) Nexthop: Version: 10, rn_version: 10 Flags: 0x a Local ASN: Remote ASN: Local RID: Remote RID: First Hop: NHID: 6 Label: 24004, Refcount: 3 rpc_set: 12d82f9c Egress Engineering Peer Set: /32 (12f77ba4) Nexthop: Version: 8, rn_version: 8 Flags: 0x Local ASN: Remote ASN: Local RID: Remote RID: First Hop: , NHID: 0, 0 Label: 24003, Refcount: 3 rpc_set: 12ae0f9c Egress Engineering Peer Set: /32 (12f76c00) Nexthop: Version: 9, rn_version: 9 Flags: 0x a Local ASN: Remote ASN: Local RID: Remote RID: First Hop: NHID: 7 Label: 24005, Refcount: 3 rpc_set: 12d006b4 25

26 R3: show MPLS label table Show MPLS label table RP/0/0/CPU0:R3#show mpls forwarding Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched Pop No ID Gi0/0/0/ Peer-Node-SID Pop No ID Gi0/0/0/ Pop No ID Gi0/0/0/ Pop No ID Gi0/0/0/ Peer-Adj-SIDs 26

27 R3: show MPLS label table (cont.) Show MPLS label table RP/0/0/CPU0:R3#show mpls forwarding labels detail Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched Pop No ID Gi0/0/0/ Updated: Aug 27 19:55: Path Flags: 0x6080 [ MULT ] Version: 21, Priority: 3 Label Stack (Top -> Bottom): { Imp-Null } NHID: 0x0, Encap-ID: N/A, Path idx: 0, Backup path idx: 0, Weight: 0 MAC/Encaps: 14/14, MTU: 1500 Packets Switched: 0 Pop No ID Gi0/0/0/ Updated: Aug 27 19:55: Path Flags: 0x6080 [ MULT ] Version: 21, Priority: 3 Label Stack (Top -> Bottom): { Imp-Null } NHID: 0x0, Encap-ID: N/A, Path idx: 1, Backup path idx: 0, Weight: 0 MAC/Encaps: 0/0, MTU: 1500 Packets Switched: 0 27

28 R4: show BGP EPE SIDs show BGP EPE SIDs RP/0/0/CPU0:R4#show bgp egress-engineering Egress Engineering Peer Set: /32 (12d87a18) Nexthop: Version: 6, rn_version: 6 Flags: 0x Local ASN: Remote ASN: Local RID: Remote RID: First Hop: NHID: 1 Label: 24000, Refcount: 3 rpc_set: 12d86fd4 Egress Engineering Peer Set: /32 (12d87c60) Nexthop: Version: 7, rn_version: 7 Flags: 0x Local ASN: Remote ASN: Local RID: Remote RID: First Hop: NHID: 2 Label: 24001, Refcount: 3 rpc_set: 12d84de8 28

29 R4: show MPLS label table Show MPLS label table RP/0/0/CPU0:R4#show mpls forwarding Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched Pop No ID Gi0/0/0/ Peer-Node-SID Pop No ID Gi0/0/0/

30 R4 Show MPLS label table RP/0/0/CPU0:R4#show mpls forwarding labels detail Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched Pop No ID Gi0/0/0/ Updated: Aug 27 11:37: Path Flags: 0x6000 [ ] Version: 13, Priority: 3 Label Stack (Top -> Bottom): { Imp-Null } NHID: 0x0, Encap-ID: N/A, Path idx: 0, Backup path idx: 0, Weight: 0 MAC/Encaps: 14/14, MTU: 1500 Packets Switched: 0 RP/0/0/CPU0:R4#show mpls forwarding labels detail Local Outgoing Prefix Outgoing Next Hop Bytes Label Label or ID Interface Switched Pop No ID Gi0/0/0/ Updated: Aug 27 11:39: Path Flags: 0x6000 [ ] Version: 14, Priority: 3 Label Stack (Top -> Bottom): { Imp-Null } NHID: 0x0, Encap-ID: N/A, Path idx: 0, Backup path idx: 0, Weight: 0 MAC/Encaps: 14/14, MTU: 1500 Packets Switched: 0 30

31 R1: check link-state routes Check link-state routes received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state Prefix codes: E link, V node, T IP reacheable route, u/u unknown I Identifier, N local node, R remote node, L link, P prefix L1/L2 ISIS level-1/level-2, O OSPF, D direct, S static/peer-node a area-id, l link-id, t topology-id, s ISO-ID, c confed-id/asn, b bgp-identifier, r router-id, i if-address, n nbr-address, o OSPF Route-type, p IP-prefix d designated router address Network Next Hop Metric LocPrf Weight Path *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 *> [V][O][I0x0][N[c65001][b ][a ][r ]]/376 Nodes *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 *> [E][O][I0x0][N[c65001][b ][a ][r ]][R[c65001][b ][a ][r ]][L[i ][n ]]/792 Links 31

32 R1: check link-state routes (cont.) Check link-state routes received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state Prefix codes: E link, V node, T IP reacheable route, u/u unknown I Identifier, N local node, R remote node, L link, P prefix L1/L2 ISIS level-1/level-2, O OSPF, D direct, S static/peer-node a area-id, l link-id, t topology-id, s ISO-ID, c confed-id/asn, b bgp-identifier, r router-id, i if-address, n nbr-address, o OSPF Route-type, p IP-prefix d designated router address Network Next Hop Metric LocPrf Weight Path <snip> *> [E][B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/664 *> [E][B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/664 *> [E][B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/664 *> [E][B][I0x0][N[c65001][b ][q ]][R[c65002][b ][q ]][L[i ][n ]]/664 *> [E][B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/664 New BGP-EPE links Processed 18 prefixes, 18 paths 32

33 R1: check link-state routes (cont.) Check link-state routes received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state Prefix codes: E link, V node, T IP reacheable route, u/u unknown I Identifier, N local node, R remote node, L link, P prefix L1/L2 ISIS level-1/level-2, O OSPF, D direct, S static/peer-node a area-id, l link-id, t topology-id, s ISO-ID, c confed-id/asn, b bgp-identifier, r router-id, i if-address, n nbr-address, o OSPF Route-type, p IP-prefix d designated router address Network Next Hop Metric LocPrf Weight Path <snip> *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /24]]/480 *> [T][O][I0x0][N[c65001][b ][a ][r ]][P[o0x01][p /32]]/488 Prefixes Processed 18 prefixes, 18 paths 33

34 R1: check link-state routes (cont) Get detail of a BGP-EPE link link-state route received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state [E][ B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/6 64 BGP routing table entry for [E][B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/664 Versions: Process brib/rib SendTblVer Speaker Last Modified: Aug 27 19:55: for 00:02:41 Paths: (1 available, best #1) Not advertised to any peer Path #1: Received by speaker 0 Not advertised to any peer from ( ) Origin IGP, localpref 100, valid, external, best, group-best Received Path ID 0, Local Path ID 0, version 109 Link-state: Peer-SID:

35 R1: check link-state routes (cont) Get detail of a BGP-EPE link link-state route received by R1 RP/0/0/CPU0:R1#show bgp link-state link-state [E][ B][I0x0][N[c65001][b ][q ]][R[c65003][b ][q ]][L[i ][n ]]/ 664 Versions: Process brib/rib SendTblVer Speaker Last Modified: Aug 27 19:55: for 00:02:53 Paths: (1 available, best #1) Not advertised to any peer Path #1: Received by speaker 0 Not advertised to any peer from ( ) Origin IGP, localpref 100, valid, external, best, group-best Received Path ID 0, Local Path ID 0, version 110 Link-state: Peer-Adj-SID:

36 Thank You! End of session WSDN01_v0.1 Issue Date: [Date] Revision: [xx]