IPoE-sessie over Pseudowire-head-end in breedbandnetwerkgateway
Inhoud
Inleiding
Dit document beschrijft de stappen om IP over Ethernet (IPoE)-sessies te configureren via Pseudowire Head-end (PWHE) op ASR9K.
Voorwaarden
Vereisten
Cisco raadt kennis van de volgende onderwerpen aan:
- MPLS Layer 2 VPN
- BNG-functionaliteit op ASR9K
Gebruikte componenten
Dit document is niet beperkt tot specifieke softwareversie, maar de lijnkaart die we voor ASR9K hebben gebruikt, is A9K-MPA-20X1GE.
De informatie in dit document is gebaseerd op de apparaten in een specifieke laboratoriumomgeving. Alle apparaten die in dit document worden beschreven, hadden een opgeschoonde (standaard)configuratie. Als uw netwerk live is, moet u de potentiële impact van elke opdracht begrijpen.
Achtergrondinformatie
BNG biedt abonneeondersteuning via PWHE. PWHE biedt L3-connectiviteit met de randknooppunten van de klant via een pseudowire-verbinding. PWHE beëindigt de L2VPN-circuits die tussen de toegangsknooppunten (A-PE) van de edge bestaan, naar een virtuele interface en voert routing uit op het native IP-pakket. Elke virtuele interface kan een of meer fysieke interfaces naar de toegangscloud gebruiken om klantrouters te bereiken via de A-PE knooppunten.
Configureren
Netwerkdiagram
Om deze test uit te voeren wordt één ASR1K met versie 154-3.S2 gebruikt en ASR9K met versie IOS-XR 5.2.2. OSPF wordt gebruikt als routingprotocol om elkaar te bereiken loopback-adressen.
ASR9K-terugkoppelingsadres: 10.1.1.1/32
ASR1K-terugkoppelingsadres: 10.2.2.2/32
ASR 100K
pseudowire-class MPLS
encapsulation mpls
interface GigabitEthernet1/0/0 no ip address media-type rj45 negotiation auto cdp enable xconnect 10.1.1.1 2020 encapsulation mpls pw-class MPLS end
ASR1K#show etherchannel summary
Flags: D - down P/bndl - bundled in port-channel
I - stand-alone s/susp - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
20 Po20(RU) LACP Gi1/0/1(bndl) Gi1/1/1(bndl)
RU - L3 port-channel UP State
SU - L2 port-channel UP state
P/bndl - Bundled
S/susp - Suspended
interface Port-channel20
ip address 192.168.20.2 255.255.255.0
no negotiation auto
mpls ip
end
ASR9K
Hier is de configuratie van ASR9K, die fungeert als BNG PWHE.
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show bundle bundle-ether 20
Thu May 21 06:35:39.294 UTC
Bundle-Ether20
Status: Up
Local links
: 2 / 0 / 2 Local bandwidth
: 2000000 (2000000) kbps MAC address (source): 10f3.1172.02c8 (Chassis pool) Inter-chassis link: No Minimum active links / bandwidth: 1 / 1 kbps Maximum active links: 64 Wait while timer: 2000 ms Load balancing: Default LACP: Operational Flap suppression timer: Off Cisco extensions: Disabled mLACP: Not configured IPv4 BFD: Not configured Port Device State Port ID B/W, kbps -------------------- --------------- ----------- -------------- ---------- Gi0/0/1/18 Local Active 0x8000, 0x0007 1000000 Link is Active Gi0/0/1/19 Local Active 0x8000, 0x0008 1000000 Link is Active interface Bundle-Ether20 ipv4 address 192.168.20.1 255.255.255.0 load-interval 30 !
Stel nu de xconnect tussen ASR1K en ASR9K in. Specificeer het loopbackadres van ASR1K (10.2.2.2/32) als xconnect-buur.
l2vpn
router-id 10.1.1.1
pw-class ASR1K
encapsulation mpls
transport-mode ethernet
!
!
xconnect group PWHE
p2p ASR1K
interface PW-Ether20
neighbor ipv4 10.2.2.2 pw-id 2020
pw-class ASR1K
!
!
!
!
generic-interface-list BE20_ONLY
interface Bundle-Ether20
interface GigabitEthernet0/0/1/18
interface GigabitEthernet0/0/1/19
!
interface PW-Ether20
ipv4 address 192.168.1.1 255.255.255.0
attach generic-interface-list BE20_ONLY
!
Configureer nu het beleid voor abonneecontrole en pas dit toe op de PW-Ethernet-interface waar de abonnee wordt beëindigd.
dynamic-template type ipsubscriber WDAAR_PWHE_DT ipv4 verify unicast source reachable-via rx ipv4 unnumbered Loopback44 ipv4 unreachables disable ! ! policy-map type control subscriber IPoE_WDAAR_PWHE event session-start match-first class type control subscriber DHCPv4 do-until-failure 5 authorize aaa list WDAAR identifier source-address-mac password cisco 10 activate dynamic-template WDAAR_PWHE_DT ! ! end-policy-map interface PW-Ether20.250 ipv4 address 192.168.10.1 255.255.255.252 service-policy type control subscriber IPoE_WDAAR_PWHE encapsulation dot1q 250 ipsubscriber ipv4 l2-connected initiator dhcp ! !
Verifiëren
Deze sectie verschaft informatie die u kunt gebruiken om te verifiëren dat uw configuratie correct werkt. Hier zijn de opdrachten die u kunt gebruiken om te verifiëren dat xconnect UP/UP is op ASR9K.
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn xconnect
Legend: ST = State, UP = Up, DN = Down, AD = Admin Down, UR = Unresolved,
SB = Standby, SR = Standby Ready, (PP) = Partially Programmed
XConnect Segment 1 Segment 2
Group Name ST Description ST Description ST
------------------------ ----------------------------- -----------------------------
PWHE ASR1K UP PE20 UP 10.2.2.2 2020 UP
----------------------------------------------------------------------------------------
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn xconnect brief
AToM
Like-to-Like UP DOWN UNR
PW-Ether 1 0 0
Total 1 0 0
Total 1 0 0
Total: 1 UP, 0 DOWN, 0 UNRESOLVED
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show subscriber session filter ipv4-address 192.168.44.254
Codes: IN - Initialize, CN - Connecting, CD - Connected, AC - Activated,
ID - Idle, DN - Disconnecting, ED - End
Type Interface State IP Address (Vrf)
--------------------------------------------------------------------------------
IP:DHCP PE20.250.ip1 AC 192.168.44.254 (default)
Zodra de xconnect is UP en IPoE sessie online komt op ASR9K kunt u zien dat Access-interface PW-Ether is.
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show subscriber session filter ipv4-address 192.168.44.254 detail
Interface: PW-Ether20.250.ip1
Circuit ID: Unknown
Remote ID: Unknown
Type: IP: DHCP-trigger
IPv4 State: Up, Mon Apr 20 19:32:51 2015
IPv4 Address: 192.168.44.254, VRF: default
Mac Address: 001f.ca3f.7924
Account-Session Id: 00000068
Nas-Port: Unknown
User name: 001f.ca3f.7924
Formatted User name: unknown
Client User name: unknown
Outer VLAN ID: 250
Subscriber Label: 0x000001db
Created: Mon Apr 20 19:32:49 2015
State: Activated
Authentication: unauthenticated
Authorization: authorized
Access-interface: PW-Ether20.250 Policy Executed:
policy-map type control subscriber IPoE_WDAAR_PWHE
event Session-Start match-first [at Mon Apr 20 19:32:49 2015]
class type control subscriber DHCPv4 do-until-failure [Succeeded]
5 authorize aaa list WDAAR [Succeeded]
10 activate dynamic-template WDAAR_PWHE_DT [Succeeded]
Session Accounting: disabled
Last COA request received: unavailable
Controleer nu de Layer 3-connectiviteit van BNG-abonnee via PWHE.
RP/0/RSP0/CPU0:ACDC-ASR9000-1#ping 192.168.44.254 Mon Feb 23 19:37:58.188 UTC Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.44.254, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms RP/0/RSP0/CPU0:ACDC-ASR9000-1#
Problemen oplossen
Deze sectie verschaft informatie die u kunt gebruiken om problemen met uw configuratie op te lossen en de status van de xconnect op ASR9K te verifiëren.
Opdracht om de ASR9K configuratie te controleren
Deze opdrachten kunnen worden gebruikt om te controleren of de configuratie op ASR9K correct is.
- toon lopende configuratie l2vpn
- toon lopende configuratie int PW-Ether<Interface-Number>
- toon lopende configuratie mpls ldp
- toon lopende-configuratie generische-interface-lijst
controleren L2VPN XC's
Controleer of de aansluiting is verbroken. De xconnect (en dus de AC en PW) moet omhoog. U kunt deze opdrachten gebruiken om de status te controleren.
- samenvatting van l2vpn xconnect tonen
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn xconnect summary Thu May 21 05:40:05.068 UTC Number of groups: 1 Number of xconnects: 1 Up: 1 Down: 0 Unresolved: 0 Partially-programmed: 0 AC-PW: 1 AC-AC: 0 PW-PW: 0 Monitor-Session-PW: 0 Number of Admin Down segments: 0 Number of MP2MP xconnects: 0 Up 0 Down 0 Advertised: 0 Non-Advertised: 0 Number of CE Connections: 0 Advertised: 0 Non-Advertised: 0 Backup PW: Configured : 0 UP : 0 Down : 0 Admin Down : 0 Unresolved : 0 Standby : 0 Standby Ready: 0 Backup Interface: Configured : 0 UP : 0 Down : 0 Admin Down : 0 Unresolved : 0 Standby : 0
show l2vpn xconnect interface <Interface> detail OR show l2vpn xconnect detai
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn xconnect interface pw-eth20 detail
Thu May 21 05:40:55.789 UTC
Group PWHE, XC ASR1K, state is up; Interworking none
AC: PW-Ether20, state is up
Type PW-Ether
Interface-list: BE20_ONLY
Replicate status:
BE20: success
Gi0/0/1/18: success
Gi0/0/1/19: success
MTU 1500; interworking none
Internal label: 16001
Statistics:
packets: received 52970, sent 0
bytes: received 3485714, sent 0
PW: neighbor 10.2.2.2, PW ID 2020, state is up ( established )
PW class asr1k, XC ID 0xc0000001
Encapsulation MPLS, protocol LDP
Source address 10.1.1.1
PW type Ethernet, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set
PW Status TLV in use
MPLS Local Remote
------------ ------------------------------ -----------------------------
Label 16002 17
Group ID 0x920 unknown
Interface PW-Ether20 unknown
MTU 1500 1500
Control word disabled disabled
PW type Ethernet Ethernet
VCCV CV type 0x2 0x2
(LSP ping verification) (LSP ping verification)
VCCV CC type 0x6 0x6
(router alert label) (router alert label)
(TTL expiry) (TTL expiry)
------------ ------------------------------ -----------------------------
Incoming Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
Outgoing Status (PW Status TLV):
Status code: 0x0 (Up) in Notification message
MIB cpwVcIndex: 3221225473
Create time: 21/05/2015 02:52:43 (02:48:12 ago)
Last time status changed: 21/05/2015 05:21:17 (00:19:38 ago)
Last time PW went down: 21/05/2015 03:10:45 (02:30:10 ago)
Statistics:
packets: received 52970, sent 0
bytes: received 3485714, sent 0
Controleer de interfacelijst
Toont de interface-lijst die door PWHE wordt gebruikt: het zou moeten bestaan en de aangewezen interfaces hebben.
- naam van generieke interfacelijst tonen <NAME>
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show generic-interface-list name BE20_ONLY Thu May 21 05:43:26.649 UTC generic-interface-list: BE20_ONLY (ID: 1, interfaces: 3) Bundle-Ether20 - items pending 0, downloaded to FIB GigabitEthernet0/0/1/18 - items pending 0, downloaded to FIB GigabitEthernet0/0/1/19 - items pending 0, downloaded to FIB Number of items: 1 List is downloaded to FIB
Controleer PWHE in een interfacelijst
De privé output hieronder wijst op welke lidinterfaces "actief"zijn d.w.z. welke degenen aan FIB zijn gedownload.
- de naam van de l2vpn-generieke interface-lijst weergeven <NAME>
- toon l2vpn generisch-interface-lijst privé
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn generic-interface-list name BE20_ONLY detail
Thu May 21 05:39:04.983 UTC
Generic-interface-list: BE20_ONLY (ID: 1, interfaces: 3)
Bundle-Ether20 - items pending 0
GigabitEthernet0/0/1/18 - items pending 0
GigabitEthernet0/0/1/19 - items pending 0
Number of items: 1
PW-Ether: 20
Controleer of MA de PWHE met juiste informatie heeft
Informatie over de interfacelijst, CW, VC-type enz., moet correct in MA worden ingesteld.
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn ma pwhe interface PW-Ether 20 private
Thu May 21 05:36:28.170 UTC
Interface: PW-Ether20 Interface State: Up, Admin state: Up
Interface handle 0x920
MTU: 1514
BW: 10000 Kbit
Interface MAC addresses (1 address):
10f3.1172.02c5
IDB is not in Replicate Linked List
IDB is not in Create Linked List
IDB is not in Attr Linked List
Opaque flags: 0xe
Flags: 0x3c
Valid : IFH, MTU, MAC, BW
MA trace history [Num events: 32]
---------------------------------------------------
Time Event Value Sticky Many
==== ===== ========== ====== ====
05/21/2015 02:56:05 Remove retry list 0x3 No No
05/21/2015 02:56:05 IDB Set flag 0x3c No No
05/21/2015 03:08:26 IDB Set State 0x1 No No
05/21/2015 03:08:26 IM publish attr 0x45 No No
05/21/2015 03:08:26 IM update init-data 0x1e No No
05/21/2015 03:08:26 IDB Set flag 0x3c No No
05/21/2015 03:08:26 Remove retry list 0x3 No No
05/21/2015 03:08:26 IDB Set flag 0x3c No No
05/21/2015 03:09:54 IDB Set State 0 No No
05/21/2015 03:09:54 IM publish attr 0x45 No No
05/21/2015 03:09:54 IM publish attr 0x52 No No
05/21/2015 03:09:54 IM update init-data 0x1e No No
05/21/2015 03:09:54 IDB Set flag 0x3c No No
05/21/2015 03:09:54 Remove retry list 0x3 No No
05/21/2015 03:09:54 IDB Set flag 0x3c No No
05/21/2015 03:09:54 Remove retry list 0x3 No No
05/21/2015 03:09:54 IDB Set flag 0x3c No No
05/21/2015 03:10:45 IDB Set State 0x1 No No
05/21/2015 03:10:45 IM publish attr 0x45 No No
05/21/2015 03:10:45 IM update init-data 0x1e No No
05/21/2015 03:10:45 IDB Set flag 0x3c No No
05/21/2015 03:10:45 Remove retry list 0x3 No No
05/21/2015 03:10:45 IDB Set flag 0x3c No No
05/21/2015 05:21:17 IDB Set State 0 No No
05/21/2015 05:21:17 IM publish attr 0x45 No No
05/21/2015 05:21:17 IM publish attr 0x52 No No
05/21/2015 05:21:17 IM update init-data 0x1e No No
05/21/2015 05:21:17 IDB Set flag 0x3c No No
05/21/2015 05:21:17 Remove retry list 0x3 No No
05/21/2015 05:21:17 IDB Set flag 0x3c No No
05/21/2015 05:21:17 Remove retry list 0x3 No No
05/21/2015 05:21:17 IDB Set flag 0x3c No No
CLIENT MA trace history [Num events: 27]
---------------------------------------------------
Time Event Value Sticky Many
==== ===== ========== ====== ====
05/21/2015 02:54:01 IM Notify Up 0x50049e10 No No
05/21/2015 02:54:01 FSM state change 0x200 No No
05/21/2015 02:54:01 FSM state change 0x2030d No No
05/21/2015 02:54:02 Double restart detected 0x5 No No
05/21/2015 02:55:00 I/f created/added 0x4000540 No No
05/21/2015 02:55:00 I/f created/added 0x4000580 No No
05/21/2015 02:55:00 I/f created/added 0x4000540 No No
05/21/2015 02:55:00 I/f created/added 0x4000580 No No
05/21/2015 02:55:00 Intf list change 0x3000300 No No
05/21/2015 02:55:00 Intf add error 0x4000540 No No
05/21/2015 02:55:00 Intf add error 0x4000580 No No
05/21/2015 02:55:00 FSM state change 0x30505 No No
05/21/2015 02:55:01 Replicate result 0x13fe No No
05/21/2015 02:55:01 FSM state change 0x5060b No No
05/21/2015 02:55:01 I/f up 0x4000580 No No
05/21/2015 02:55:01 I/f up 0x4000580 No No
05/21/2015 02:55:02 I/f up 0x4000540 No No
05/21/2015 02:55:02 I/f up 0x4000540 No No
05/21/2015 02:56:05 Added to peer 0x6060606 No No
05/21/2015 02:56:05 FSM state change 0x60704 No No
05/21/2015 02:56:05 Fill VIMI attr 0x20002 No No
05/21/2015 03:08:26 FSM state change 0x70605 No No
05/21/2015 03:09:54 FSM state change 0x60704 No No
05/21/2015 03:09:54 Fill VIMI attr 0x20002 No No
05/21/2015 03:10:45 FSM state change 0x70605 No No
05/21/2015 05:21:17 FSM state change 0x60704 No No
05/21/2015 05:21:17 Fill VIMI attr 0x20002 No No
PW-HE IDB client data
---------------------
IDB handle 0x5016db2c
Dot1q vlan: 0x81000000
Label: 16001
Remote VC label: 17
Remote PE: 10.2.2.2
Use flow-label on tx: N
L2-overhead: 0
VC-type: 5
CW: N
FSM state: 'Up'(7)
Fwding is up: Y, got route update: Y
Use OWNED_RESOURCE fwding: N
OWNED_RESOURCE fwding is up: N
OWNED_RESOURCE data: 0
Replication error msg has been printed: N
VIF MA reg_handle: 50049e10
PIC array:
(nil)
Replicate retry count: 0
Configured i/f list name: 'BE20_ONLY'
From L2VPN i/f list name: 'BE20_ONLY', i/f list id: 1
L3 i/f:'Bundle-Ether20', idx=0, repl_status 1, fwding up:N, active:Y
L3 i/f:'GigabitEthernet0/0/1/18', idx=1, repl_status 1, fwding up:Y, active:Y
L3 i/f:'GigabitEthernet0/0/1/19', idx=2, repl_status 1, fwding up:Y, active:Y
List intf: 0x5016e154, PLs size:4, num in use:2
I/f:'Gi0/0/1/18', ifh:0x4000540, bundle: 0xb20, ifl idx:1, in-use:Y, misconfig:Y, in peer route:Y, VIMI active:Y
Repl:Y pending:N failed:N not supp:N, unrepl pending:N failed:N, up:Y us:3
I/f:'Gi0/0/1/19', ifh:0x4000580, bundle: 0xb20, ifl idx:2, in-use:Y, misconfig:Y, in peer route:Y, VIMI active:Y
Repl:Y pending:N failed:N not supp:N, unrepl pending:N failed:N, up:Y us:3
I/f:'', ifh:0x0, bundle: 0x0, ifl idx:0, in-use:N, misconfig:N, in peer route:N, VIMI active:N
Repl:N pending:N failed:N not supp:N, unrepl pending:N failed:N, up:N us:0
I/f:'', ifh:0x0, bundle: 0x0, ifl idx:0, in-use:N, misconfig:N, in peer route:N, VIMI active:N
Repl:N pending:N failed:N not supp:N, unrepl pending:N failed:N, up:N us:0
---------------------------------------------------
Overzichtsinformatie PWHE controleren
Controleer of de tellers in de uitvoer juist zijn:
- toon l2vpn pwhe samenvatting
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn pwhe summary Thu May 21 05:35:59.381 UTC Number of PW-HE interfaces: 1 Up: 1 Down: 0 Admindown: 0 PW-Ether: 1 Up: 1 Down: 0 Admindown: 0 PW-IW: 0 Up: 0 Down: 0 Admindown: 0
Labels controleren
Controleer het etiket in de etikettabel. U moet eerst de interne labels van xconnect informatie met deze opdracht.
- details van l2vpn xconnect tonen
zoek vervolgens naar intern Label in de output en voer vervolgens deze showopdracht uit om de label- en interfaceverbinding op ASR9K te verifiëren.
- tonen mpls label tabel label <internal_label> detail
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show l2vpn xconnect detail
Thu May 21 05:27:11.762 UTC
Group PWHE, XC ASR1K, state is up; Interworking none
AC: PW-Ether20, state is up
Type PW-Ether
Interface-list: BE20_ONLY
Replicate status:
BE20: success
Gi0/0/1/18: success
Gi0/0/1/19: success
MTU 1500; interworking none
Internal label: 16001
Statistics:
packets: received 27293, sent 0
bytes: received 1996176, sent 0
PW: neighbor 10.2.2.2, PW ID 2020, state is up ( established )
PW class asr1k, XC ID 0xc0000001
Encapsulation MPLS, protocol LDP
Source address 10.1.1.1
PW type Ethernet, control word disabled, interworking none
PW backup disable delay 0 sec
Sequencing not set
RP/0/RSP0/CPU0:ACDC-ASR9000-1#show mpls label table label 16001 detail Thu May 21 05:27:55.760 UTC Table Label Owner State Rewrite ----- ------- ---------------------------- ------ ------- 0 16001 L2VPN:Active InUse Yes (PW-HE, vers:0, intf=PE20)
Verkeersleuven/sessies komen niet omhoog
Als er geen sessie verschijnt, controleer dan of er pakketten in NP zijn gevallen. U kunt deze opdrachten gebruiken om de pakketdaling in NP op ASR9K te zien.
- clear counters
- details van l2vpn xconnect tonen | pakket opnemen
- clear controllers np-tellers
- toon controlemechanisme np tellers allen
BNG-verwante opdrachten tonen
Gebruik deze opdrachten om de BNG-gerelateerde informatie over ASR9K te controleren.
- alle samenvatting van abonneesessie weergeven
- unieke samenvatting van geschiedenis van abonneebeheer weergeven
- toon de statistieken van de abonneemanager totaal zuiveren
- overzicht van abonneebeheer-statistieken tonen
- gebeurtenissen/fouten tonen bij het traceren van abonneebeheer
Debugs moeten worden ingeschakeld
Als een sessie niet op ASR9K is gestart en u geen pakket hebt gevonden dat op NP is gedropt, kunt u deze debugs op ASR9K inschakelen om te zien waarom een sessie niet wordt gestart in ASR9K.
- debug l2vpn ea pwhe platform breedbose
- debug l2vpn doorsturen platform gemeenschappelijk alle
- debug pm API-locatie <locatie>
- debug pm foutlocatie <locatie>
- Foutoplossing voor DIB API-fouten lokatie <locatie>
escalatie
Als u nog steeds een probleem hebt, neemt u contact op met Cisco TAC en verzamelt u de Show tech van ASR9K.
- show tech-support abonnee
- toon tech-support l2vpn
Revisiegeschiedenis
| Revisie | Publicatiedatum | Opmerkingen |
|---|---|---|
1.0 |
20-Oct-2017 |
Eerste vrijgave |
FeedbackContact Cisco
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