Controleer SPAN en ERSPAN op Catalyst 9000 Series Switches

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Bijgewerkt:30 augustus 2022

Document-id:218111

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Over deze vertaling

Cisco heeft dit document vertaald via een combinatie van machine- en menselijke technologie om onze gebruikers wereldwijd ondersteuningscontent te bieden in hun eigen taal. Houd er rekening mee dat zelfs de beste machinevertaling niet net zo nauwkeurig is als die van een professionele vertaler. Cisco Systems, Inc. is niet aansprakelijk voor de nauwkeurigheid van deze vertalingen en raadt aan altijd het oorspronkelijke Engelstalige document (link) te raadplegen.

Inhoud

Inleiding

Voorwaarden

Vereisten

Gebruikte componenten

Controleer de overloop

Netwerkdiagram

Configuratie SPAN

Controleer ERSPAN

Netwerkdiagram

ERSPAN-configuratie

bronapparaat

ERSPAN-doelapparaat

Relevante debugs en traceringen

Gerelateerde informatie

Inleiding

Dit document beschrijft hoe u SPAN en ERSPAN op Catalyst 9000 Series Switches kunt verifiëren.

Voorwaarden

Vereisten

Er zijn geen specifieke vereisten van toepassing op dit document.

Gebruikte componenten

De informatie in dit document is gebaseerd op de volgende software- en hardware-versies:

Catalyst 9300 (Cisco IOS®-XE 17.3.5)
Catalyst 9500 (Cisco IOS®-XE 17.3.5)

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 zorgen dat u de potentiële impact van elke opdracht begrijpt.

Verwante producten

Dit document kan ook worden gebruikt voor de volgende hardware- en softwareversies:

Catalyst 9200
Catalyst 9300
Catalyst 9500
Catalyst 9400
Catalyst 9600

Controleer de overloop

Netwerkdiagram

SPAN Topology

Configuratie SPAN

monitor session 1 source interface Twe1/0/1
monitor session 1 destination interface Twe1/0/2

Controleer de SPAN-softwareconfiguratie. Neem nota van de interfaces van de bron en van de bestemming SPAN en de richting van de SPAN-opname.

C9500-SPAN#show monitor session all
Session 1
---------
Type                     : Local Session
Source Ports             :
    Both                 : Twe1/0/1
Destination Ports        : Twe1/0/2
    Encapsulation        : Native
          Ingress        : Disabled

Controleer de SPAN-hardwaregegevens. Gebruik deFED Session ID dat uniek is per SPAN-configuratie. Er kunnen maximaal acht FED-sessies tegelijkertijd worden geconfigureerd (van FED-sessies 0 tot 7).

C9500-SPAN# show platform software monitor session 1
Span Session 1 (FED Session 0):
  Type:      Local SPAN
  Prev type: Local SPAN
  Ingress Src Ports: Twe1/0/1    <-- Hardware entry for source interface.
  Egress Src Ports:  Twe1/0/1    <-- Hardware entry for source interface.
  Ingress Local Src Ports: (null)
  Egress Local Src Ports: (null)
  Destination Ports:  Twe1/0/2   <-- Hardware entry for destination interface.
  Ingress Src Vlans:
  Egress Src Vlans:
  Ingress Up Src Vlans: (null)
  Egress Up Src Vlans:  (null)
  Src Trunk filter Vlans:
  RSPAN dst vlan: 0
  RSPAN src vlan: 0
  RSPAN src vlan sav: 0
  Dest port encap = 0x0000
  Dest port ingress encap = 0xFFFFFFFFFFFFFFFF
  Dest port ingress vlan = 0x0
  SrcSess: 1  DstSess: 0 DstPortCfgd: 1  RspnDstCfg: 0  RspnSrcVld: 0
  DstCliCfg: 0  DstPrtInit: 1  PsLclCfgd: 0
  Flags: 0x00000031 PSPAN
  Remote dest port: 0   Dest port group: 0
  FSPAN disabled
  FSPAN not notified

Verzamel ASIC-, Core- en poortnummers voor de geconfigureerde SPAN-poorten voor bron en bestemming. Het poortnummer is vereist om te bevestigen of de Source SPAN interface goed is geprogrammeerd en of de SPAN is gericht op de juiste Bestemming SPAN interface.

Tip: Gebruik de juiste nomenclatuur standalone apparaat show platform software / hardware gevoed actieve of stack apparaat show platform software / hardware gevoed switch <number>.

C9500-SPAN# show platform software fed active ifm mappings 
Interface                 IF_ID    Inst Asic Core Port SubPort Mac  Cntx LPN  GPN  Type Active
TwentyFiveGigE1/0/1       0x8        1   0   1    20     0      16   4    1    101  NIF  Y
TwentyFiveGigE1/0/2       0x9        1   0   1    21     0      17   5    2    102  NIF  Y

Het IlePortLeSpanBitMapTable Doppler-register wordt gebruikt om te definiëren of een poort in de toegangsrichting (RX) onderhevig is aan SPAN. Om te bevestigen dat de geconfigureerd bron-SPAN-poort (ASIC-poort 20) is toegewezen aan de juiste FED-sessie (sessie 0):

C9500-SPAN# show platform hardware fed active fwd-asic register read register-name IlePortLeSpanBitMapTable-20 asic 0 core 1
For asic 0 core 1

Module 0 - IlePortLeSpanBitMapTable[0][20] 

ssbm                      : 0x1     <-- Convert from Hexadecimal to Binary: 0b00000001. Bit 0 is set.

De SPAN Session Bit Map is een 8-bits register. Elke bit komt overeen met een FED-sessie: Het minst significante bit komt overeen met FED-sessie 0, het meest significante bit komt overeen met FED-sessie 7. Het maximale aantal ondersteunde SPAN-sessies is dus 8, zoals eerder vermeld.

Als een interface is geconfigureerd als SPAN-bronpoort voor meerdere SPAN-sessies, moeten alle FED-sessies in het SBM-register verschijnen. Bijvoorbeeld SSBM met de waarde 0x5 (0b00000101) betekent dat de interface een SPAN-bron is voor zowel FED-sessie 0 als FED-sessie 2.

Op dezelfde manier bepaalt Doppler register ElePortLeSpanBitMapTable register of een poort onderhevig is aan SPAN in uitgaande (TX) richting. De analyse is hetzelfde als IlePortLeSpanBitTable register. Om te bevestigen dat de geconfigureerd bron-SPAN-poort (ASIC-poort 20) is toegewezen aan de juiste FED-sessie (sessie 0):

C9500-SPAN# show platform hardware fed active fwd-asic register read register-name ElePortLeSpanBitMapTable-20 asic 0 core 1
For asic 0 core 1

Module 0 - ElePortLeSpanBitMapTable[0][20] 

ssbm                      : 0x1

Dit bevestigt dat de bron-SPAN-interface aan de juiste FED-sessie is toegewezen voor zowel RX- als TX-richting.

Met de FED sessie-ID vinden we de bestemmingspoorten voor de SPAN in het AqmRepSpanPortMap Doppler register. Om de FED-sessie te bevestigen, wijst 0 punten naar de juiste SPAN-bestemmingshaven (ASIC-poort 21):

C9500-SPAN# show platform hardware fed active fwd-asic register read register-name AqmRepSpanPortMap-0 asic 0 core 1
For asic 0 core 1

Module 0 - AqmRepSpanPortMap[0][0] 

cpuQueueNum               : 0x0
cpuSpanValid              : 0x0
indirectApPortMap         : 0x0
portMap0                  : 0x200000     <-- Convert from Hexadecimal to Binary: 0b00100000000000000000000. Bit 21 is set.
rcpPortMap                : 0x0
spanCtiLo                 : 0x0

Dit bevestigt dat de met SPAN opgenomen pakketten moeten worden gerepliceerd vanuit interface Tw1/0/2 (ASIC-poort 21). Als er meer SPAN-doelpoorten geconfigureerd zijn, worden deze weergegeven in het AqmRepSpanPortMap-register.

Controleer ERSPAN

Netwerkdiagram

ERSPAN Topology

Opmerking: Catalyst C9200 ondersteunt ERSPAN niet.

Opmerking: DNA-Advantage licentie is vereist.

ERSPAN-configuratie

### Source ESRPAN Device ###

C9300-ERSPAN# show run | section monitor
monitor session 1 type erspan-source
 source vlan 10 
 destination
  erspan-id 3                     <-- ERSPAN id must be identical on source and destination.
  ip address 192.168.1.1          <-- GRE tunnel destination IP (IP addr configured on ERSPAN destination switch).
  origin ip address 192.168.1.2   <-- GRE tunnel source IP (IP addr configured on ERSPAN source switch).
  
C9300-ERSPAN# show ip interface brief | exclude unassigned
Interface              IP-Address      OK? Method Status                Protocol    
<snip>
Loopback0              192.168.1.2     YES NVRAM  up                    up      

### Destination ERSPAN Device ###

C9500-ERSPAN# show run | section monitor
monitor session 1 type erspan-destination
destination interface Twe1/0/3
source
erspan-id 3                       <-- ERSPAN id must be identical on source and destination.  
ip address 192.168.1.1            <-- GRE tunnel destination IP (IP addr configured on ERSPAN destination switch).

C9500-ERSPAN# show ip interface brief | exclude unassigned
Interface            IP-Address       OK? Method Status                Protocol
<snip> 
Loopback0            192.168.1.1     YES NVRAM   up                   up

bronapparaat

Controleer de bereikbaarheid tussen het IP-adres van de oorsprong en het IP-adres van de bestemming.

C9300-ERSPAN#ping 192.168.1.1 source 192.168.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
Packet sent with a source address of 192.168.1.2 
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/2 ms

Cisco IOS-softwareprogrammering

Controleer in Cisco IOS-software het item voor de ERSPAN-sessie.

C9300-ERSPAN#show monitor session 1
Session 1
---------
Type                     : ERSPAN Source Session
Status                   : Admin Enabled
Source VLANs             :
    Both                 : 10
Destination IP Address   : 192.168.1.1
Destination ERSPAN ID    : 3
Origin IP Address        : 192.168.1.2

SHIM-programmering

Controleer welke software naar de hardware van het programma stuurt (SHIM-object).

C9300-ERSPAN#show platform software monitor session 1
Span Session 1 (FED Session 0):
  Type:      ERSPAN Source
  Prev type: Unknown
  Ingress Src Ports:
  Egress Src Ports: 
  Ingress Local Src Ports: (null)
  Egress Local Src Ports: (null)
  Destination Ports: 
  Ingress Src Vlans: 10     <-- Replicate Traffic.
  Egress Src Vlans:  10     <-- Replicate Traffic.
  Ingress Up Src Vlans: 10
  Egress Up Src Vlans:  10
  Src Trunk filter Vlans:
  RSPAN dst vlan: 0
  RSPAN src vlan: 0
  RSPAN src vlan sav: 0
  Dest port encap = 0x0000
  Dest port ingress encap = 0x0000
  Dest port ingress vlan = 0x0
  SrcSess: 1  DstPortCfgd: 0  RspnDstCfg: 0  RspnSrcVld: 0    <-- Monitor session number.
  DstCliCfg: 0  DstPrtInit: 0  PsLclCfgd: 0
  Flags: 0x00000002 VSPAN
  Remote dest port: 0   Dest port group: 0
  FSPAN disabled
  FSPAN not notified
  ERSPAN Id    : 3     	      <-- Value match with the software setting.				
  ERSPAN Org Ip: 192.168.1.2  <-- Value match with the software setting.			
  ERSPAN Dst Ip: 192.168.1.1  <-- Value match with the software setting.
  ERSPAN Ip Ttl: 255
  ERSPAN State : Enabled        		
  ERSPAN Tun id: 77

Routeprocessor voor Forwarding Manager

Controleer welke software naar de hardware van het programma stuurt (FMAN RP Layer).

C9300-ERSPAN#show platform software swspan switch active R0 source 
Showing SPAN source table summary info

Sess-id   IF-type   IF-id   Sess-type   Dir         
--------------------------------------------------
0         VLAN      10      ERSPAN SRC  Ingress     
0         VLAN      10      ERSPAN SRC  Egress    


C9300-ERSPAN#show platform software swspan switch active R0 source sess-id 0
Showing SPAN source detail info
Session ID : 0
Intf Type : VLAN
Vlan id : 10       <-- Vlan entry
PD Sess ID : 0
Session Type : ERSPAN SRC
Direction : Ingress
Filter Enabled : No
ACL Configured : No
ERSPAN Enable : Yes

Session ID : 0
Intf Type : VLAN
Vlan id : 10    <-- Match with the Vlan/Interface SPAN.
PD Sess ID : 0
Session Type : ERSPAN SRC
Direction : Egress
Filter Enabled : No
ACL Configured : No
ERSPAN Enable : Yes

Forwarding Manager-Forwarding Processor

Controleer welke software naar de hardware van het programma stuurt (FMAN FP Layer).

C9300-ERSPAN#show platform software swspan switch active F0 source 
Showing SPAN source table summary info

Sess-id   IF-type   IF-id   Sess-type   Dir         
--------------------------------------------------
0         VLAN      10      ERSPAN SRC  Ingress     
0         VLAN      10      ERSPAN SRC  Egress

C9300-ERSPAN#show platform software swspan switch active F0 source sess-id 0
Showing SPAN source detail info

Session ID : 0
Intf Type : VLAN
Vlan id : 10
PD Sess ID : 0
Session Type : ERSPAN SRC   <-- Source Interface.
Direction : Ingress
Filter Enabled : No
ACL Configured : No
AOM Object id : 519
AOM Object Status : Done
Parent AOM object Id : 30
Parent AOM object Status : Done

Session ID : 0
Intf Type : VLAN
Vlan id : 10
PD Sess ID : 0
Session Type : ERSPAN SRC  <-- Source Interface.
Direction : Egress
Filter Enabled : No
ACL Configured : No
AOM Object id : 520
AOM Object Status : Done
Parent AOM object Id : 30
Parent AOM object Status : Done


C9300-ERSPAN#show platform software swspan switch active F0 counters  <-- Check for any err counters that increment on PI/PD/HW
Dump Switch SPAN FP operation counters  <-- Operational Counters.

Source SPAN Config Counters

PI: Create 2 (err 0), Modify 0 (err 0), Delete 0 (err 0) <-- PI = platform independent (Software/IOS).
PD: Create 2 (err 0), Modify 0 (err 0), Delete 0 (err 0) <-- PD = platform dependent (SHIM/FMAN/FED).
HW: Create 2 (err 0), Modify 0 (err 0), Delete 0 (err 0) <-- HW = hardware (FED/ASIC).

Destination SPAN Config Counters

PI: Create 1 (err 0), Modify 0 (err 0), Delete 0 (err 0)
PD: Create 1 (err 0), Modify 0 (err 0), Delete 0 (err 0)
HW: Create 1 (err 0), Modify 0 (err 0), Delete 0 (err 0)

Filter SPAN Config Counters

PI: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)
PD: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)
HW: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)

Forwarding Engine Driver

Controleer de laag die de ASIC (FED) programmeert.

C9300-ERSPAN#show platform software fed switch active monitor 0
Session 0
---------
  Session Type         : ERSPAN Source Session
  Source Ports         : RX: None  TX: None  
  Destination Ports    : None
  Source VLANs         : VLAN-10
  Destination VLANs    : VLAN-10 
  Source RSPAN VLAN    : 0
  DST RSPAN VLAN       : 0
  Encap                : Native
  Ingress Forwarding   : Disabled
  Filter VLANs         : None
  ERSPAN Enable        : 1         <-- 1 = On/Completed.
  ERSPAN Hw Programmed : 1         <-- 1 = On/Completed.
  ERSPAN Mandatory Cfg : 1         <-- 1 = On/Completed.
  ERSPAN Id            : 3
  Gre Prot             : 88be
  MTU                  : 9000
  Ip Tos               : 0
  Ip Ttl               : 255
  Cos                  : 0
  Vrf Id               : 0
  Dst Ip               : 192.168.1.1
  Org Ip               : 192.168.1.2
  Dst Ipv6             : ::
  Org Ipv6             : ::
  SGT count            : 0
  SGT Tag(s)           :

Controleer de hardwaretunnelprogrammering (FED).

C9300-ERSPAN#show platform software fed switch active ifm interfaces tunnel 
Interface                         IF_ID               State             
----------------------------------------------------------------------
Tunnel1000000000                  0x00000035          READY            <-- 0x35 in Hex is 53 in Decimal (tunnel number 53).

C9300-ERSPAN#show platform software fed switch active ifm if-id 0x35 <-- Hardware tunnel number 0x35.
Interface IF_ID : 0x0000000000000035
Interface Name : Tunnel1000000000
Interface Block Pointer : 0x55d0ff5b6c98
Interface Block State : READY
Interface State : Enabled
Interface Status : ADD
Interface Ref-Cnt : 4
Interface Type : TUNNEL
    Unit : 0
    SNMP IF Index : 0
    Encap L3If LE Handle : 0x7f00e0a50a28    <-- Hardware handle info (used to check final Hardware program state).
    Decap L3If LE Handle : 0x7f00e0a50bd8    <-- Hardware handle info (used to check final Hardware program state).
    Tunnel Mode : 0 [gre]                    <-- Tunnel Protocol Enable.
    Tunnel Sub-mode: 0 [none]
    Hw Support : Yes
    Tunnel Vrf : 0
    IPv4 MTU : 0
    IPv6 MTU : 0
    IPv4 VRF ID : 0
    IPv6 VRF ID : 0
    Protocol flags : 0x0001 [ ipv4 ]
    Misc flags : 0x0000 [ None ]
    ICMPv4 flags : 0x03 [ unreachable redirect ]
    ICMPv6 flags : 0x03 [ unreachable redirect ]

Port Information
    Handle ............ [0xcf000051]
    Type .............. [L3-Tunnel]
    Identifier ........ [0x35]
    Unit .............. [53]
    Port Logical Tunnel Subblock
    Encap-L3ifle.......[0x7f00e0a50a28]   <-- Same number as previous highlighted output.
    Decap-L3ifle.......[0x7f00e0a50bd8]   <-- Same number as previous highlighted output.
    decap-portle.......[0x0]
    RI-decap...........[0x7f00e0a5a1a8]
    SI-decap...........[0x7f00e0a5a678]
    Decap-Tcam_handle..[0x7f00e0a5a9a8]
    Tunnel_capability..[0x3]
    Encap-RCP-PMAP.....[0x0]
    GPN................[0]

C9300-ERSPAN#show platform software fed switch active ifm mappings l3if-le | include L3IF|Tunnel
L3IF_LE                   Interface                         IF_ID               Type                  
0x00007f00e0a50a28        Tunnel1000000000                  0x00000035          ENCAP_L3_LE <-- L3IF + IF_ID (ENCAP) match here.               
0x00007f00e0a50bd8        Tunnel1000000000                  0x00000035          DECAP_L3_LE <-- L3IF + IF_ID (DECAP) match here.

Encapsulation LE

C9300-ERSPAN#show platform hardwware fed switch active fwd-asic abstraction print-resource-handle 0x00007f00e0a50a28 0 <-- ENCAP. 
Handle:0x7f00e0a50a28 Res-Type:ASIC_RSC_L3IF_LE Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_IFM Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x27 mtu_index/l3u_ri_index0:0x5 sm handle [ASIC 0]: 0x7f00e0a56d08 index1:0x27 mtu_index/l3u_ri_index1:0x5

==============================================================

Decapsulation LE

C9300-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x00007f00e0a50a28 0 <-- DECAP.
Handle:0x7f00e0a50bd8 Res-Type:ASIC_RSC_L3IF_LE Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_IFM Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x28 mtu_index/l3u_ri_index0:0x0 sm handle [ASIC 0]: 0x7f00e0a559c8 index1:0x28 mtu_index/l3u_ri_index1:0x0

==============================================================

switch Start ingesloten pakketvastlegging op de uitgangspoort naar de bestemmingshaven. Een filter kan worden toegepast, gebruik de bron en de bestemming IP van de GRE-tunnel (het pakket is een ingesloten pakket).

Frame 1: 110 bytes on wire (880 bits), 110 bytes captured (880 bits) on interface 0
 <snip>
Internet Protocol Version 4, Src: 192.168.1.2, Dst: 192.168.1.1 <-- ERSPAN IP HEADER.
    0100 .... = Version: 4
    .... 0101 = Header Length: 20 bytes (5)
    Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
        0000 00.. = Differentiated Services Codepoint: Default (0)
        .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
    Total Length: 96
    Identification: 0x1018 (4120)
    Flags: 0x00
        0... .... = Reserved bit: Not set
        .0.. .... = Don't fragment: Not set
        ..0. .... = More fragments: Not set
    Fragment offset: 0
    Time to live: 255
    Protocol: Generic Routing Encapsulation (47)  <-- GRE tunnel encapsulation.
    Header checksum: 0x9c56 [validation disabled]
        [Good: False]
        [Bad: False]
    Source: 192.168.1.2              <-- Source GRE IP tunnel.
    Destination: 192.168.1.1         <-- Destination GRE IP tunnel.
Generic Routing Encapsulation (ERSPAN)
    Flags and Version: 0x1000
        0... .... .... .... = Checksum Bit: No
        .0.. .... .... .... = Routing Bit: No
        ..0. .... .... .... = Key Bit: No
        ...1 .... .... .... = Sequence Number Bit: Yes
        .... 0... .... .... = Strict Source Route Bit: No
        .... .000 .... .... = Recursion control: 0
        .... .... 0000 0... = Flags (Reserved): 0
        .... .... .... .000 = Version: GRE (0)
    Protocol Type: ERSPAN (0x88be)         <--ERSPAN enable. 
    Sequence Number: 0
Encapsulated Remote Switch Packet Analysis
    0001 .... .... .... = Version: Type II (1)
    .... 0000 0001 1000 = Vlan: 10
    000. .... .... .... = Priority: 0
    ...1 .... .... .... = Unknown2: 1
    .... 1... .... .... = Direction: Outgoing (1)
    .... .0.. .... .... = Truncated: Not truncated (0)
    .... ..00 0000 0011 = SpanID: 3       <--ERSPAN ID.
    Unknown7: 00000002
Ethernet II, Src: Xerox_00:02:00 (00:00:08:00:02:00), Dst: Cisco_eb:90:68 (00:9e:1e:eb:90:68)  
  <snip>
(Internal data packet comes here, output truncated)

ERSPAN-doelapparaat

Cisco IOS-softwareprogrammering

C9500-ERSPAN#show monitor session 1
Session 1
---------
Type                     : ERSPAN Destination Session
Status                   : Admin Enabled
Destination Ports        : Twe1/0/3
Source IP Address        : 192.168.1.1
Source ERSPAN ID         : 3

SHIM-programmering

Controleer welke software naar de hardware van het programma stuurt (SHIM-object).

C9500-ERSPAN#show platform software monitor session 1
Span Session 1 (FED Session 0):
  Type:      ERSPAN Destination
  Prev type: Unknown
  Ingress Src Ports:
  Egress Src Ports: 
  Ingress Local Src Ports: (null)
  Egress Local Src Ports: (null)
  Destination Ports:  Twe1/0/3
  Ingress Src Vlans:
  Egress Src Vlans: 
  Ingress Up Src Vlans: (null)
  Egress Up Src Vlans:  (null)
  Src Trunk filter Vlans:
  RSPAN dst vlan: 0
  RSPAN src vlan: 0
  RSPAN src vlan sav: 0
  Dest port encap = 0x0004
  Dest port ingress encap = 0x0000
  Dest port ingress vlan = 0x0
  SrcSess: 0  DstSess: 1 DstPortCfgd: 1  RspnDstCfg: 0  RspnSrcVld: 0
  DstCliCfg: 0  DstPrtInit: 1  PsLclCfgd: 0
  Flags: 0x00000000
  Remote dest port: 0   Dest port group: 0
  FSPAN disabled
  FSPAN not notified
  ERSPAN Id    : 3
  ERSPAN Dst Ip: 192.168.1.1
  ERSPAN Vrf   : 0

Forwarding Manager-Forwarding Processor

Controleer welke software naar de hardware van het programma stuurt (FMAN FP Layer).

C9500-ERSPAN#show platform software swspan switch active r0 destination
Showing SPAN destination table summary info

Sess-id   IF-type   IF-id   Sess-type   
--------------------------------------
0         PORT      11       Local        <-- IF-if 0xb maps to Twe1/0/3 (Check under 'show platform software fed active ifm mapping').
0         ERSPAN    ERSPAN   DST  


C9500-ERSPAN#show platform software swspan R0 destination sess-id 0
Showing SPAN destination detail info

Session ID : 0
Intf Type : PORT       
Port dpidx :11         <--Match with IF-id
PD Sess Id : 0
Session Type : Local   <-- Type of monitor session
Ingress Fwd : No
Ingress Encape : Disabled
Ingress Vlan : 0
Encap Value : Replicate
RSPAN Vlan : 0

Session ID : 0
Intf Type : ERSPAN
Vlan id : 
PD Sess Id : 0
Session Type : ERSPAN DST
ERSPAN Id : 3
ERSPAN Dst Ip: 192.168.1.1
ERSPAN Src Ip: 0.0.0.0
GRE Prot  : 35006
MTU       : 0
IP Tos    : 0
IP Ttl    : 255
Cos       : 0
Vrf Id    : 0
Tunnel Ifid: 38         <-- 38 in Decimal is 0x26 in Hex which is the IF_ID of Tunnel1
ERSPAN En : TDL_TRUE

Forwarding Manager-Forwarding Processor

Controleer welke software naar de hardware van het programma stuurt (FMAN FP Layer).

C9500-ERSPAN#show platform software swspan switch active F0 counters  <-- (check for any error counters on PI/PD/HW).
Dump Switch SPAN FP operation counters

Source SPAN Config Counters

PI: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)  <-- PI = platform independent (Software/IOS). 
PD: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)  <-- PD = platform dependent (SHIM/FMAN/FED).
HW: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)  <-- HW = hardware (FED/ASIC).

Destination SPAN Config Counters

PI: Create 10 (err 0), Modify 6 (err 0), Delete 4 (err 0)
PD: Create 4 (err 0), Modify 0 (err 0), Delete 2 (err 0)
HW: Create 4 (err 0), Modify 0 (err 0), Delete 2 (err 0)

Filter SPAN Config Counters

PI: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)
PD: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)
HW: Create 0 (err 0), Modify 0 (err 0), Delete 0 (err 0)

C9500-ERSPAN#show platform software swspan switch active F0 destination 
Showing SPAN destination table summary info

Sess-id   IF-type   IF-id   Sess-type   
--------------------------------------
0         PORT      11       Local       
0         VLAN      0       ERSPAN DST

Forwarding Engine Driver

Controleer de laag die de ASIC (FED) programmeert.

C9500-ERSPAN#show platform software fed switch active monitor 0
Session 0
---------
  Session Type         : ERSPAN Destination Session
  Source Ports         : RX: None TX: Tunnel1000000000
  Destination Ports    : TwentyFiveGigE1/0/3 
  Source VLANs         : None  
  Destination VLANs    : None  
  Source RSPAN VLAN    : 0
  DST RSPAN VLAN       : 0
  Encap                : Replicate
  Ingress Forwarding   : Disabled
  Filter VLANs         : None
  ERSPAN Enable        : 1
  ERSPAN Hw Programmed : 1
  ERSPAN Mandatory Cfg : 1
  ERSPAN Id            : 3
  Ip Tos               : 0 (DSCP:0)
  Ip Ttl               : 0
  Cos                  : 0
  Vrf Id               : 0
  Tunnel IfId          : 38                 <-- 38 in Decicmal is 0x26 in Hex which is the IF_ID of Tunnel1
  Dst Ip               : 192.168.1.1        
  Org Ip               : 0.0.0.0
  SGT count            : 0
  SGT Tag(s)           :

Controleer de hardwaretunnelprogrammering (FED).

C9500-ERSPAN#show platform software fed switch active ifm interfaces tunnel
Interface               IF_ID        State
----------------------------------------------------------------------
Tunnel1000000000        0x00000026   READY

C9500-ERSPAN#show platform software fed switch active ifm if-id 0x00000026
Interface IF_ID : 0x0000000000000026
Interface Name : Tunnel1000000000
Interface Block Pointer : 0x7f2cd48e9958
Interface Block State : READY
Interface State : Enabled
Interface Status : ADD
Interface Ref-Cnt : 5
Interface Type : TUNNEL

	Unit           : 0
	SNMP IF Index  : 0
	Encap L3If LE Handle : 0x7f2cd4904e08    <-- Hardware handle info (used to check final Hardware program state).
	Decap L3If LE Handle : 0x7f2cd48dabc8    <-- Hardware handle info (used to check final Hardware program state).
	Tunnel Mode    : 0 [gre]                 <-- Tunnel Protocol Enable.
	Hw Support     : Yes
	Tunnel Vrf     : 0
	IPv4 MTU       : 0
	IPv6 MTU       : 0
	IPv4 VRF ID    : 0
	IPv6 VRF ID    : 0
	Protocol flags : 0x0001 [ ipv4 ]
	Misc flags     : 0x0000 [ None ]
	ICMPv4 flags   : 0x03 [ unreachable redirect ]
	ICMPv6 flags   : 0x03 [ unreachable redirect ]
          
	Port Information
	Handle ............ [0xd4000043]
	Type .............. [L3-Tunnel]
	Identifier ........ [0x26]
	Unit .............. [38]
	Port Logical Tunnel Subblock
		Encap-L3ifle.......[0x7f2cd4904e08]     <-- Same number as previous highlighted output.
		Decap-L3ifle.......[0x7f2cd48dabc8]     <-- Same number as previous highlighted output.
		decap-portle.......[0x0]
		RI-decap...........[0x7f2cd49615d8]     <-- Same number as previous highlighted output.
		SI-decap...........[0x7f2cd4958dd8]     <-- Same number as previous highlighted output.
		Decap-Tcam_handle..[0x7f2cd46eee08]     <-- Same number as previous highlighted output.
		Tunnel_capability..[0x3]
		Encap-RCP-PMAP.....[0x0]
		GPN................[0]
<snip>

C9500-ERSPAN#show platform software fed switch active ifm mappings l3if-le | include L3IF|Tunnel
L3IF_LE                   Interface                         IF_ID               Type                  
0x00007f2cd48dabc8        Tunnel1000000000                  0x00000026          DECAP_L3_LE      <-- L3IF + IF_ID (DECAP) match here.        
0x00007f2cd4904e08        Tunnel1000000000                  0x00000026          ENCAP_L3_LE      <-- L3IF + IF_ID (ENCAP) match here.

### Encapsulation LE ###

C9500-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f2cd4904e08 0 <--ENCAP
Handle:0x7f2cd4904e08 Res-Type:ASIC_RSC_L3IF_LE Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_IFM Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x27  mtu_index/l3u_ri_index0:0x2  sm handle [ASIC 0]: 0x7f2cd46ece38 index1:0x27 mtu_index/l3u_ri_index1:0x4 

==============================================================

### Decapsulation LE ###

C9500-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f2cd48dabc8 0 <--DECAP
Handle:0x7f2cd48dabc8 Res-Type:ASIC_RSC_L3IF_LE Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_IFM Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: index0:0x28 mtu_index/l3u_ri_index0:0x0 sm handle [ASIC 0]: 0x7f2cd46d91c8 index1:0x28 mtu_index/l3u_ri_index1:0x0

### Rewrite Index (decapsulation) ###

C9500-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f2cd49615d8 1   <-- RI-decap
Handle:0x7f2cd49615d8 Res-Type:ASIC_RSC_RI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_GRE Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: 0x7f2cd48daf28Hardware Indices/Handles: index0:0x16 mtu_index/l3u_ri_index0:0x0 index1:0x16 mtu_index/l3u_ri_index1:0x0
Features sharing this resource:107 (1)]
Cookie length: 56
00 00 00 00 00 00 00 00 28 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 6b 33 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------

Rewrite Data Table Entry, 
ASIC#:0 RI:22 Rewrite_type:AL_RRM_REWRITE_IPV4_ERSPAN2_DECAP(61) Mapped_rii:TUNNEL_IPv4Erspan_DECAP(83)

  L3IF LE Index: 40           <-- 64 in Decimal is 0x40 in Hex which matches Decap LE index seen above

Detailed Resource Information (ASIC# 1)
----------------------------------------
          
Rewrite Data Table Entry, 
ASIC#:1 RI:22 Rewrite_type:AL_RRM_REWRITE_IPV4_ERSPAN2_DECAP(61) Mapped_rii:TUNNEL_IPv4Erspan_DECAP(83)

 L3IF LE Index:	 40
==============================================================

### Station Index (decapsulation) ###

C9500-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f2cd4958dd8 1  <-- SI-decap
Handle:0x7f2cd4958dd8 Res-Type:ASIC_RSC_SI Res-Switch-Num:255 Asic-Num:255 Feature-ID:AL_FID_GRE Lkp-ftr-id:LKP_FEAT_INVALID ref_count:1
priv_ri/priv_si Handle: 0x7f2cd49615d8Hardware Indices/Handles: index0:0xae mtu_index/l3u_ri_index0:0x0 index1:0xae mtu_index/l3u_ri_index1:0x0
Features sharing this resource:107 (1)]
Cookie length: 56
00 00 00 00 00 00 00 00 28 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 6b 36 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

Detailed Resource Information (ASIC# 0)
----------------------------------------

Station Index (SI) [0xae]
RI = 0x16
DI = 0x5012
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0x15
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: LD 
Detailed Resource Information (ASIC# 1)
----------------------------------------

Station Index (SI) [0xae]
RI = 0x16
DI = 0x5012
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0x15
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: CD 
==============================================================

### Tunnel Decap (TCAM) ###

C9500-ERSPAN#show platform hardware fed switch active fwd-asic abstraction print-resource-handle 0x7f2cd46eee08 1  <-- Decap-Tcam_handle.
Handle:0x7f2cd46eee08 Res-Type:ASIC_RSC_HASH_TCAM Res-Switch-Num:0 Asic-Num:255 Feature-ID:AL_FID_GRE Lkp-ftr-id:LKP_FEAT_TT_IPV4_GRE ref_count:1
priv_ri/priv_si Handle: (nil)Hardware Indices/Handles: handle [ASIC: 0]: 0x7f2cd48db018

Detailed Resource Information (ASIC# 0)
----------------------------------------
Number of HTM Entries: 3

Entry 0: (handle 0x7f2cd48db018)
Labels  Port   Vlan   L3If   Group
M:      0000   0000   0000   0000
V:      0000   0000   0000   0000

M: ffffffff 00000000 00000000 000003ff 00000000 00000100 01000000 00000fff
3f000000 
V: c0a80101 00000000 00000000 00000003 00000000 00000100 01000000 00000000      <-- c0a80101 in Hex maps to 192.168.1.1
        00000000 

GREv4 Dst       Src     Key     C S R D E F VRF Fl L3P GreP Misc RCPSVCId
  M: ffffffff 00000000 00000000 0 0 0 0 0 1 000 0  00  0000 00 3f               <-- F=1 Forwarding
  V: c0a80101 00000000 00000000 0 0 0 0 0 1 000 0  00  0000 00 00        
Action: 00000100 06000000 00000000 00000000 00000000 00000000 000000ad 00000000 
        00000000 00000000 
RL2 RL3 ACF SPK CLPC LKV PRI STL LPC ADC LKI   SI 

0   1   0   0    0   0   6   0   0   0   0    ad                                <-- Hexadecimal value for Station Index.        
Start/Skip Word: 0x00000003
Start Feature, Terminate

Entry 1: (handle 0x7f2cd495c3f8)
Labels  Port   Vlan   L3If   Group
M:      0000   0000   0000   0000
V:      0000   0000   0000   0000

M: ffffffff 00000000 00000000 000003ff 00000000 00000100 00000000 000a0000 
        3f000000 
V: c0a80101 00000000 00000000 00000003 00000000 00000100 00000000 00080000 
        00000000 

GREv4 Dst       Src     Key     C S R D E F VRF Fl L3P GreP Misc RCPSVCId
  M: ffffffff 00000000 00000000 0 0 0 0 0 0 000 a  00  0000 00 3f
  V: c0a80101 00000000 00000000 0 0 0 0 0 0 000 8  00  0000 00 00
Action: 00000100 06000000 00000000 00000000 00000000 00000000 000000ad 00000000 
        00000000 00000000 
RL2 RL3 ACF SPK CLPC LKV PRI STL LPC ADC LKI   SI 

0   1   0   0    0   0   6   0   0   0   0   ad                     
Start/Skip Word: 0x00000000
No Start, Terminate


Entry 2: (handle 0x7f2cd46ef568)
Labels  Port   Vlan   L3If   Group
M:      0000   0000   0000   0000
V:      0000   0000   0000   0000

M: ffffffff 00000000 00000000 000003ff 00000000 00000100 00000000 00020fff
        00000000 
V: c0a80101 00000000 00000000 00000003 00000000 00000100 00000000 00000000 
        00000000 

GREv4 Dst       Src     Key     C S R D E F VRF Fl L3P GreP Misc RCPSVCId
  M: ffffffff 00000000 00000000 0 0 0 0 0 0 000 2  00  0000 00 00
  V: c0a80101 00000000 00000000 0 0 0 0 0 0 000 0  00  0000 00 00
Action: 00000100 06000000 00000000 00000000 00000000 00000000 000000ae 00000000 
        00000000 00000000 
RL2 RL3 ACF SPK CLPC LKV PRI STL LPC ADC LKI   SI 

0   1   0   0    0   0   6   0   0   0   0   ae                                <-- Hexadecimal value for Station Index.
Start/Skip Word: 0x00000000
No Start, Terminate
==============================================================

C9500-ERSPAN#show platform hardware fed switch active fwd-asic resource asic 0 station-index range 0xab 0xab        
ASIC#0:
Station Index (SI) [0xad]
RI = 0x14
DI = 0x505a                  <-- Destination Index                      
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0x15
rcpServiceId = 0xd
dejaVuPreCheckEn = 0
Replication Bitmap: LD

C9500-ERSPAN#show platform hardware fed switch active fwd-asic resource asic 0 station-index range 0xae 0xae     

Station Index (SI) [0xae]
RI = 0x16
DI = 0x5012                 <-- Destination Index
stationTableGenericLabel = 0
stationFdConstructionLabel = 0x7
lookupSkipIdIndex = 0x15
rcpServiceId = 0
dejaVuPreCheckEn = 0
Replication Bitmap: LD

C9500-ERSPAN#show platform hardware fed switch active fwd-asic resource asic 0 destination-index range 0x505a 0x505a 

Destination index = 0x505a DI_RCP_PORT2
pmap = 0x00000000 0x00000000
cmi = 0x0
rcp_pmap = 0x2
al_rsc_cmi
CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

C9500-ERSPAN#show platform hardware fed switch active fwd-asic resource asic 0 destination-index range 0x5012 0x5012 
ASIC#0:
Destination Index (DI) [0x5012]
portMap = 0x00000000 00000000
cmi1 = 0
rcpPortMap = 0x1

CPU Map Index (CMI) [0]
ctiLo0 = 0
ctiLo1 = 0
ctiLo2 = 0
cpuQNum0 = 0
cpuQNum1 = 0
cpuQNum2 = 0
npuIndex = 0
stripSeg = 0
copySeg = 0

Relevante debugs en traceringen

Cisco IOS XE

debug monitor all
debug platform monitor

FMAN-RP

set platform software trace forwarding-manager switch <> R0 switch-span  verbose
show platform software trace message forwarding-manager switch <> R0

FMAN-FP

set platform software trace forwarding-manager switch <> F0 switch-span verbose
show platform software trace message forwarding-manager switch <> F0

FED

set platform software trace fed switch <> swspan verbose
set platform software trace fed switch <> asic_spn verbose
set platform software trace fed switch <> acl verbose  (Useful when ip/ipv6 filter is configured)
show platform software trace message fed switch <>

Gerelateerde informatie

Revisiegeschiedenis

Revisie	Publicatiedatum	Opmerkingen
1.0	30-Aug-2022	Eerste vrijgave

Bijgedragen door Cisco-engineers

Piriyankaa Palanivel Ravikumar
Ambrose Taylor
Gerardo Trejo

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