Hardware EX: Análisis en profundidad de reenvío de paquetes de ACI.
Contenido
Introducción
Este documento describe diferentes escenarios de reenvío mediante switches ACI basados en "EX" en Application Centric Infrastructure (ACI). Mostrará cómo verificar que el hardware está programado correctamente y estamos reenviando paquetes a los terminales de destino (EP) correctos en los grupos de terminales adecuados (EPG).
Prerequisites
Requirements
No hay requisitos específicos para este documento.
Componentes Utilizados
La información que contiene este documento se basa en estas versiones de software y hardware.
- Fabric ACI que consta de dos switches de columna y dos switches de hoja que utilizan hardware EX
- Host ESXi con dos enlaces ascendentes que van a cada uno de los switches hoja
- Dispositivo Nexus 5000 que actúa como router.
- Controlador de infraestructura de políticas de aplicaciones (APIC) que se utiliza para la configuración inicial
The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.
Escenarios
2 EP en el mismo EPG/Misma hoja - Trama conmutada
Topología
Dada esta topología, el flujo de EP1 a EP2 es un flujo de L2 y se debe conmutar localmente en cualquier hoja en la que se conecte el tráfico de origen. Lo primero que se debe verificar con los flujos de Capa 2 (L2) es la tabla de direcciones mac para determinar si el switch recibió tramas y dónde las recibió:
leaf4# show mac address-table | grep fccc * 30 0050.56a5.fccc dynamic - F F po3 leaf4# show mac address-table | grep 6794 * 30 0050.56a5.6794 dynamic - F F po4
Para ver la vlan de encapsulación, también podemos verificar la base de datos EP:
leaf4# show endpoint mac 0050.56a5.fccc
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
30 vlan-2268 0050.56a5.fccc LV po3
Joey-Tenant:Joey-Internal vlan-2268 192.168.20.2 LV po3
calo2-leaf4# show endpoint mac 0050.56a5.6794
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
30 vlan-2268 0050.56a5.6794 LV po4
Joey-Tenant:Joey-Internal vlan-2268 192.168.20.3 LV po4
Sabemos que FD_VLAN 30 coincide, pero siempre podemos validar la asignación en el software:
leaf4# show vlan extended | grep 2268 30 enet CE vlan-2268
Y, por supuesto, podemos verificar el hardware para asegurarnos de que VLAN 30 se mapee a VLAN 2268 como la encapsulación del panel frontal.
leaf4# vsh_lc
module-1# show system internal eltmc info vlan 30 vlan_id: 30 ::: hw_vlan_id: 22 vlan_type: FD_VLAN ::: bd_vlan: 28 access_encap_type: 802.1q ::: access_encap: 2268 fabric_encap_type: VXLAN ::: fabric_encap: 11960 sclass: 32778 ::: scope: 11 untagged: 0 acess_encap_hex: 0x8dc ::: fabric_enc_hex: 0x2eb8 pd_vlan_ft_mask: 0x8 fd_learn_disable: 0 qos_class_id: 0 ::: qos_pap_id: 0 qq_met_ptr: 25 ::: ipmc_index: 0 ingressBdAclLabel: 0 ::: ingBdAclLblMask: 0 egressBdAclLabel: 0 ::: egrBdAclLblMask: 0 qos_map_idx: 0 ::: qos_map_pri: 0 qos_map_dscp: 0 ::: qos_map_tc: 0 vlan_ft_mask: 0xe30 hw_bd_idx: 0 ::: hw_epg_idx: 11267 intf_count: 2 ::: glbl_scp_if_cnt: 2 <SNIPPED>
Dado que los EP se aprenden en software, también podemos validar que el hardware programó la información L2 de estos EP. En el nuevo hardware, está la capa de abstracción de hardware (HAL), que es el estado de software del hardware. El trabajo de HAL es aceptar solicitudes de programación de software y enviarlas al hardware.
Para ver la información de hardware L2 sobre un terminal, podemos ver la tabla L2 en HAL para las direcciones mac dadas:
leaf4# vsh_lc
module-1# show platform internal hal ep l2 mac 0050.56a5.fccc LEGEND: ------- BDId: BD Id BD Name: BD Name T: EP Type (Pl: Physical Vl: Virtual Xr: Remote EP Mac: Mac L2 IfId: L2 Interface L2 IfName: L2 IfName FDId: FD Id FD Name: FD Name S Class: S Class Age Intvl: Age Interval P A: Packet Action (F: Forward, T: Trap to CPU, L: Log & Forward, D: Drop, N: None) S T: Static Ep S E: Secure EP L D: Learn Disable B N D: Bind Notify Disable E N D: Epg Notify Disable B E: Bounce Enable I D L: IVxlan Dont Learn SPI: Source Policy Incomplete DPI: Dest Policy Incomplete SPA: Source Policy Applied DPA: Dest Policy Applied DSS: Dest Shared Service IL: Is Local VUB: Vnid Use Bd SO: SA Only L2 EP Count: 1 ====================================================================================================================== B E I S D S D D V BD EP L2 L2 FD S Age P S S L N N B D P P P P S I U S BdId Name T Mac IfId Ifname FDId Name Class Intvl A T E D D D E L I I A A S L B O ====================================================================================================================== 1c BD-28 Pl 00:50:56:a5:fc:cc 16000002 Po3 1e FD-30 800a 29f F 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0 module-1# show platform internal hal ep l2 mac 0050.56a5.6794 ====================================================================================================================== B E I S D S D D V BD EP L2 L2 FD S Age P S S L N N B D P P P P S I U S BdId Name T Mac IfId Ifname FDId Name Class Intvl A T E D D D E L I I A A S L B O ====================================================================================================================== 1c BD-28 Pl 00:50:56:a5:67:94 16000003 Po4 1e FD-30 800a 29f F 0 0 0 1 0 0 0 0 0 0 0 0 1 0 0
Ahora que hemos mapeado el hardware, hagamos un ELAM y veamos adónde debe ir el paquete.
ELAM
leaf4# vsh_lc
module-1# debug platform internal tah elam asic 0 module-1(DBG-TAH-elam)# trigger reset module-1(DBG-TAH-elam)# trigger init in-select 6 out-select 0 module-1(DBG-TAH-elam-insel6)# set outer l2 src_mac 0050.56a5.fccc dst_mac 0050.56a5.6794 module-1(DBG-TAH-elam-insel6)# start module-1(DBG-TAH-elam-insel6)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Triggered module-1(DBG-TAH-elam-insel6)# report | grep ovec sug_elam_out_sidebnd_no_spare_vec.ovector_idx: 0x9E
Genial, así que Leaf4 recibió la trama en Asic 0 Slice 1. Con ELAM en el nuevo hardware, hay un nuevo campo que es muy importante para la resolución de problemas: ovector_idx. Este índice es el índice de puerto físico del que se debe reenviar la trama/paquete. Una vez que tenga ovector_idx, podemos utilizar este comando para encontrar el puerto al que mapea:
module-1(DBG-TAH-elam-insel6)# show platform internal hal l2 port gpd
Legend:
-------
IfId: Interface Id IfName: Interface Name
I P: Is PC Mbr IfId: Interface Id
Uc PC Cfg: UcPcCfg Idx Uc PC MbrId: Uc Pc Mbr Id
As: Asic AP: Asic Port
Sl: Slice Sp: Slice Port
Ss: Slice SrcId Ovec: Ovector (slice | srcid)
L S: Local Slot Reprogram:
L3: Is L3
P: PifTable Xla Idx: Xlate Idx
RP: Rw PifTable Ovx Idx: OXlate Idx
IP: If Profile Table N L3: Num. of L3 Ifs
RS: Rw SrcId Table NI L3: Num. of Infra L3 Ifs
DP: DPort Table Vif Tid: Vif Tid
SP: SrcPortState Table RwV Tid: RwVif Tid
RSP: RwSrcPortstate Table Ing Lbl: Ingress Acl Label
UC: UCPcCfg Egr Lbl: Egress Acl Label
UM: UCPcMbr Reprogram:
PROF ID: Lport Profile Id
VS: VifStateTable HI: LportProfile Hw Install
RV: Rw VifTable
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Port Count: 8
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1a004000 Eth1/5 1 0 1d 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a005000 Eth1/6 1 0 b 0 e 0 d 1a 1a 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a006000 Eth1/7 0 26 5 0 f 0 e 1c 1c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-256 - 800 0 0 1 e 0
1a007000 Eth1/8 0 2e 7 0 10 0 f 1e 1e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-84 - 800 0 0 1 30 0
1a01e000 Eth1/31 1 0 2d 0 37 1 e 1c 9c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a01f000 Eth1/32 1 0 3d 0 38 1 f 1e 9e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a030000 Eth1/49 0 2 1 0 49 1 20 38 b8 1 0 0 0 0 0 0 0 0 0 0 1 8 6 2 2 D-24d - 400 0 0 0 1 0
1a031000 Eth1/50 0 3 3 0 29 1 0 0 80 1 0 0 0 0 0 0 0 0 0 0 1 9 7 2 2 D-350 - 400 0 0 0 1 0
El switch piensa que el paquete debe reenviarse fuera de la interfaz Ethernet 1/32. ¿Es ese PO4 donde hemos aprendido esa dirección mac?
leaf4# show port-channel summary
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
F - Configuration failed
-------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
-------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/5(P)
2 Po2(SU) Eth LACP Eth1/6(P)
3 Po3(SU) Eth LACP Eth1/31(P)
4 Po4(SU) Eth LACP Eth1/32(P)
Sí, de modo que el paquete se reenviará desde la interfaz 1/32 al host de destino.
2 EP en diferentes EPG/Misma hoja - Paquete enrutado
Topología
En este ejemplo, rastrearemos el flujo de paquetes de un paquete de EP1 a EP2 donde existen en el mismo par de hojas de vPC. Los dos EP están en diferentes EPG usando diferentes BD.
Lo primero que siempre hay que hacer es revisar la base de datos de EP para ver si hemos aprendido los del EP:
leaf4# show endpoint ip 192.168.20.2
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
30 vlan-2268 0050.56a5.fccc LV po3
Joey-Tenant:Joey-Internal vlan-2268 192.168.20.2 LV po3
calo2-leaf4# show endpoint ip 192.168.21.2
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
8 vlan-2200 0050.56a5.0c11 LV po4
Joey-Tenant:Joey-Internal vlan-2200 192.168.21.2 LV po4
Dado que hemos aprendido los EP y conocemos la información de IP, deberíamos poder ver la información de aprendizaje del EP en hardware:
leaf4# vsh_lc
module-1# show platform internal hal ep l3 all
LEGEND:
-------
VrfName: Vrf Name T: Type (Pl: Physical, Vl: Virtual, Xr: Remote)
EP IP: Endpoint IP
S Class: S Class Age Intvl: Age Interval
S T: Static Ep S E: Secure EP
L D: Learn Disable B N D: Bind Notify Disable
E N D: Epg Notify Disable B E: Bounce Enable
I D L: IVxlan Dont Learn SPI: Source Policy Incomplete
DPI: Dest Policy Incomplete SPA: Source Policy Applied
DPA: Dest Policy Applied DSS: Dest Shared Service
IL: Is Local VUB: Vnid Use Bd
SO: SA Only EP NH L3IfName: EP Next Hop L3 If Name
NHT: Next Hop Type (L2: L2 Entry L3: L3 Next Hop) BD Name: L2 NH BD Name
EP Mac: EP Mac L3 IfName: L3 NH If Name
L2 IfName: L2 If Name FD Name: L2 Entry FD Name
IP: L3 NH IP
L3 EP Count: 12
===========================================================================================================================================================================================
B E I S D S D D V EP-NH N |
Vrf EP S Age S S L N N B D P P P P S I U S L3 H | BD EP L3 L2 FD
Name T IP Class Intvl T E D D D E L I I A A S L B O IfName T | Name Mac IfName Ifname Name IP
===========================================================================================================================================================================================
common*rewall Pl 10.6.112.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
common*rewall Pl 10.6.114.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
common*rewall Pl 10.6.114.129 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
common*efault Pl 100.100.101.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
Joey-T*ternal Pl 192.168.1.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
Joey-T*ternal Xr 192.168.1.100 8013 128 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 - L3 - 00:0c:0c:0c:0c:0c Tunnel2 Tunnel2 - 0.0.0.0
Joey-T*ernal2 Pl 192.168.3.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
Joey-T*ternal Pl 192.168.20.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
Joey-T*ternal Pl 192.168.20.2 800a 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 - L2 BD-28 00:50:56:a5:fc:cc - Po3 FD-30 -
Joey-T*ternal Pl 192.168.21.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
Joey-T*ternal Pl 192.168.21.2 800c 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 - L2 BD-7 00:50:56:a5:0c:11 - Po4 FD-8 -
Joey-T*ternal Pl 2001:0:0:100::1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
La tabla HAL Layer3 (l3) es muy útil ya que nos proporciona información de VLAN/Puerto para los EP aprendidos de l3. Sabemos que el destino existe de un Po4, por lo que el paquete debe ser reenviado fuera de cualquier puerto en Po4.
¡Hagamos un ELAM y veamos lo que conseguimos!
ELAM
leaf4# vsh_lc
module-1# debug platform internal tah elam asic 0 module-1(DBG-TAH-elam)# trigger init in-select 6 out-select 0 module-1(DBG-TAH-elam-insel6)# set outer ipv4 src_ip 192.168.20.2 dst_ip 192.168.21.2 module-1(DBG-TAH-elam-insel6)# start module-1(DBG-TAH-elam-insel6)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Armed module-1(DBG-TAH-elam-insel6)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Triggered module-1(DBG-TAH-elam-insel6)# report | grep ovec sug_elam_out_sidebnd_no_spare_vec.ovector_idx: 0x9E
Estupendo, entonces activamos el paquete y encontramos que "ovector_idx" es 0x9E. El índice de vectores es el índice de interfaz física saliente del que se debe reenviar el paquete. Veamos qué puerto tiene ese índice:
module-1(DBG-TAH-elam-insel6)# show platform internal hal l2 port gpd
Legend:
-------
IfId: Interface Id IfName: Interface Name
I P: Is PC Mbr IfId: Interface Id
Uc PC Cfg: UcPcCfg Idx Uc PC MbrId: Uc Pc Mbr Id
As: Asic AP: Asic Port
Sl: Slice Sp: Slice Port
Ss: Slice SrcId Ovec: Ovector (slice | srcid)
L S: Local Slot Reprogram:
L3: Is L3
P: PifTable Xla Idx: Xlate Idx
RP: Rw PifTable Ovx Idx: OXlate Idx
IP: If Profile Table N L3: Num. of L3 Ifs
RS: Rw SrcId Table NI L3: Num. of Infra L3 Ifs
DP: DPort Table Vif Tid: Vif Tid
SP: SrcPortState Table RwV Tid: RwVif Tid
RSP: RwSrcPortstate Table Ing Lbl: Ingress Acl Label
UC: UCPcCfg Egr Lbl: Egress Acl Label
UM: UCPcMbr Reprogram:
PROF ID: Lport Profile Id
VS: VifStateTable HI: LportProfile Hw Install
RV: Rw VifTable
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Port Count: 8
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1a004000 Eth1/5 1 0 1d 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a005000 Eth1/6 1 0 b 0 e 0 d 1a 1a 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a006000 Eth1/7 0 26 5 0 f 0 e 1c 1c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-256 - 800 0 0 1 c 0
1a007000 Eth1/8 0 2f 7 0 10 0 f 1e 1e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-199 - 800 0 0 1 2e 0
1a01e000 Eth1/31 1 0 2d 0 37 1 e 1c 9c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a01f000 Eth1/32 1 0 3d 0 38 1 f 1e 9e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a030000 Eth1/49 0 2 1 0 49 1 20 38 b8 1 0 0 0 0 0 0 0 0 0 0 1 6 4 2 2 D-24d - 400 0 0 0 1 0
1a031000 Eth1/50 0 3 3 0 29 1 0 0 80 1 0 0 0 0 0 0 0 0 0 0 1 5 3 2 2 D-350 - 400 0 0 0 1 0
Parece que deberíamos enviarlo al puerto 1/32, ¿es correcto?
leaf4# show port-channel summary
Flags: D - Down P - Up in port-channel (members)
I - Individual H - Hot-standby (LACP only)
s - Suspended r - Module-removed
S - Switched R - Routed
U - Up (port-channel)
M - Not in use. Min-links not met
F - Configuration failed
-------------------------------------------------------------------------------
Group Port- Type Protocol Member Ports
Channel
-------------------------------------------------------------------------------
1 Po1(SU) Eth LACP Eth1/5(P)
2 Po2(SU) Eth LACP Eth1/6(P)
3 Po3(SU) Eth LACP Eth1/31(P)
4 Po4(SU) Eth LACP Eth1/32(P)
Sí, esto es correcto.
2 EP en diferentes EPG/hojas diferentes - paquetes enrutados
Topología
En este ejemplo, rastrearemos el flujo de paquetes de un paquete de EP1 a EP2 donde el EP1 existe en un par EX vPC y el EP2 existe en un par remoto de hoja vPC de Generación 1. Los dos EP están en diferentes EPG usando diferentes BD.
De nuevo, veamos dónde se aprenden los EP:
leaf4# show endpoint ip 192.168.20.2
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
30 vlan-2268 0050.56a5.fccc LV po3
Joey-Tenant:Joey-Internal vlan-2268 192.168.20.2 LV po3
calo2-leaf4# show endpoint ip 192.168.1.100
Legend:
O - peer-attached H - vtep a - locally-aged S - static
V - vpc-attached p - peer-aged L - local M - span
s - static-arp B - bounce
+-----------------------------------+---------------+-----------------+--------------+-------------+
VLAN/ Encap MAC Address MAC Info/ Interface
Domain VLAN IP Address IP Info
+-----------------------------------+---------------+-----------------+--------------+-------------+
Joey-Tenant:Joey-Internal 192.168.1.100 tunnel2
Ahora, verifiquemos qué ha programado el hardware:
leaf4# vsh_lc
module-1# show platform internal hal ep l3 all LEGEND: ------- VrfName: Vrf Name T: Type (Pl: Physical, Vl: Virtual, Xr: Remote) EP IP: Endpoint IP S Class: S Class Age Intvl: Age Interval S T: Static Ep S E: Secure EP L D: Learn Disable B N D: Bind Notify Disable E N D: Epg Notify Disable B E: Bounce Enable I D L: IVxlan Dont Learn SPI: Source Policy Incomplete DPI: Dest Policy Incomplete SPA: Source Policy Applied DPA: Dest Policy Applied DSS: Dest Shared Service IL: Is Local VUB: Vnid Use Bd SO: SA Only EP NH L3IfName: EP Next Hop L3 If Name NHT: Next Hop Type (L2: L2 Entry L3: L3 Next Hop) BD Name: L2 NH BD Name EP Mac: EP Mac L3 IfName: L3 NH If Name L2 IfName: L2 If Name FD Name: L2 Entry FD Name IP: L3 NH IP L3 EP Count: 12 =========================================================================================================================================================================================== B E I S D S D D V EP-NH N | Vrf EP S Age S S L N N B D P P P P S I U S L3 H | BD EP L3 L2 FD Name T IP Class Intvl T E D D D E L I I A A S L B O IfName T | Name Mac IfName Ifname Name IP =========================================================================================================================================================================================== common*rewall Pl 10.6.112.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 common*rewall Pl 10.6.114.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 common*rewall Pl 10.6.114.129 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 common*efault Pl 100.100.101.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 Joey-T*ternal Pl 192.168.1.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 Joey-T*ternal Xr 192.168.1.100 8013 128 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 - L3 - 00:0c:0c:0c:0c:0c Tunnel2 Tunnel2 - 0.0.0.0 Joey-T*ernal2 Pl 192.168.3.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 Joey-T*ternal Pl 192.168.20.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 Joey-T*ternal Pl 192.168.20.2 800a 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 - L2 BD-28 00:50:56:a5:fc:cc - Po3 FD-30 - Joey-T*ternal Pl 192.168.21.1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0 Joey-T*ternal Pl 192.168.21.2 800c 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 - L2 BD-7 00:50:56:a5:0c:11 - Po4 FD-8 - Joey-T*ternal Pl 2001:0:0:100::1 1 0 1 0 0 0 0 0 1 1 0 0 0 0 1 0 0 - L3 - 00:00:00:00:00:00 - - - 0.0.0.0
El hardware cree que el EP existe en el túnel 2. ¿Cuál es el destino del túnel 2?
module-1# show system internal eltmc info interface tunnel2
IfInfo:
interface: Tunnel2 ::: ifindex: 402718722
iod: 66 ::: state: up
Mod: 0 ::: Port: 0
Tunnel Index: 0 ::: Tunnel Dst ip: 0xc0a87843
Tunnel Encap: ivxlan ::: Tunnel VPC Peer: 0
Tunnel Dst ip str: 192.168.120.67 ::: Tunnel ept: 0x1
[SDK Info]:
tunnl_name:
vrf_id: 2 ::: if_index: 0x18010002
hwencapidx: 0 ::: encaptype: 1
mac_proxy: 0 ::: v4_proxy: 0
v6_proxy: 0 ::: ip_addr_type: 0
ipv4_address: 0xc0a87843
[SDB INFO]:
iod: 66
pc_if_index: 0
fab_if_index: 0
sv_if: 0
src_idx: 0
int_vlan: 0
encap_vlan: 0
mod_port_status: 0x41620003
v6_tbl_id: 0x80000002
v4_tbl_id: 0x2
router_mac:00.00.00.00.00.00
unnumbered: 0
trunk_id: 0
tunnel_mod: 0
tunnel_port: 0
tep_ip: 0xc0a87843
ip_if_mode: 0
sdk_vrf_id: 2
mtu: 9366 ::: ipmtu_id: 0
is_fex_fabric: 0
Dado que el destino existe fuera de un vPC, esa IP de destino debe ser la IP virtual vPC de los folletos remotos. Comprobemos una hoja remota y veamos:
leaf1# show system internal epm vpc Local TEP IP : 192.168.160.95 Peer TEP IP : 192.168.160.93 vPC configured : Yes vPC VIP : 192.168.120.67 MCT link status : Up Local vPC version bitmap : 0x7 Peer vPC version bitmap : 0x7 Negotiated vPC version : 3 Peer advertisement received : Yes Tunnel to vPC peer : Up
Perfecto, por lo que aprendió el EP de destino del par vPC remoto. Veamos qué ve ELAM y verifiquemos que estamos reenviando el paquete correctamente:
ELAM
module-1# debug platform internal tah elam asic 0 module-1(DBG-TAH-elam)# trigger init in-select 6 out-select 0 module-1(DBG-TAH-elam-insel6)# set outer ipv4 src_ip 192.168.20.2 dst_ip 192.168.1.100 module-1(DBG-TAH-elam-insel6)# start module-1(DBG-TAH-elam-insel6)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Triggered
Ahora, con los destinos remotos en el hardware EX, hay 2 valores ELAM que son muy importantes a la hora de resolver problemas de flujo de paquetes. El ovector_idx como antes y el encap_idx:
module-1(DBG-TAH-elam-insel6)# report | grep ovec sug_elam_out_sidebnd_no_spare_vec.ovector_idx: 0xB8 module-1(DBG-TAH-elam-insel6)# report | grep encap sug_lurw_vec.encap_l2_idx: 0x0 sug_lurw_vec.encap_pcid: 0x0 sug_lurw_vec.encap_idx: 0x6 sug_lurw_vec.encap_vld: 0x1
En el hardware EX, tenemos la capacidad de conducir el puerto de destino del que se debe reenviar el paquete. Antes, solíamos comprobar el idx de encapsulado y verificar que el idx de destino era el túnel correcto. Aquí podemos verificar qué puerto se asigna a 8B:
module-1(DBG-TAH-elam-insel6)# show platform internal hal l2 port gpd
Legend:
-------
IfId: Interface Id IfName: Interface Name
I P: Is PC Mbr IfId: Interface Id
Uc PC Cfg: UcPcCfg Idx Uc PC MbrId: Uc Pc Mbr Id
As: Asic AP: Asic Port
Sl: Slice Sp: Slice Port
Ss: Slice SrcId Ovec: Ovector (slice | srcid)
L S: Local Slot Reprogram:
L3: Is L3
P: PifTable Xla Idx: Xlate Idx
RP: Rw PifTable Ovx Idx: OXlate Idx
IP: If Profile Table N L3: Num. of L3 Ifs
RS: Rw SrcId Table NI L3: Num. of Infra L3 Ifs
DP: DPort Table Vif Tid: Vif Tid
SP: SrcPortState Table RwV Tid: RwVif Tid
RSP: RwSrcPortstate Table Ing Lbl: Ingress Acl Label
UC: UCPcCfg Egr Lbl: Egress Acl Label
UM: UCPcMbr Reprogram:
PROF ID: Lport Profile Id
VS: VifStateTable HI: LportProfile Hw Install
RV: Rw VifTable
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Port Count: 8
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1a004000 Eth1/5 1 0 1d 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a005000 Eth1/6 1 0 b 0 e 0 d 1a 1a 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 800 0 0 1 0 0
1a006000 Eth1/7 0 26 5 0 f 0 e 1c 1c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-256 - 800 0 0 1 c 0
1a007000 Eth1/8 0 2f 7 0 10 0 f 1e 1e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-199 - 800 0 0 1 2e 0
1a01e000 Eth1/31 1 0 2d 0 37 1 e 1c 9c 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a01f000 Eth1/32 1 0 3d 0 38 1 f 1e 9e 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 1 0 0
1a030000 Eth1/49 0 2 1 0 49 1 20 38 b8 1 0 0 0 0 0 0 0 0 0 0 1 6 4 2 2 D-24d - 400 0 0 0 1 0
1a031000 Eth1/50 0 3 3 0 29 1 0 0 80 1 0 0 0 0 0 0 0 0 0 0 1 5 3 2 2 D-350 - 400 0 0 0 1 0
El switch piensa que debe reenviarlo al conmutador central en la interfaz Eth1/49. Pero, ¿cómo podemos verificar que la encapsulación es correcta?
En primer lugar, necesitamos ver la información de hardware sobre el túnel. Podemos hacerlo ejecutando este comando HAL:
module-1(DBG-TAH-elam-insel6)# show platform internal hal tunnel rtep pi
Non-Sandbox Mode
LEGEND:
-------
Tun Ifid: Tunnel Ifid IfName: Tunnel If Name
Lid: Logical Id ET: Encap Type V: Vxlan I: IVxlan N: NVGRE
VrfId: Vrf Id Vrf Name: Vrf Name
IP: Tunnel's IP
Hw Enc: Hw Encap Idx IVP: Is VPC Peer
IL: Is Local P4: Proxy for v4
P6: Proxy for V6 PM: Proxy for Mac
II: Is Ingress Only IC: Is Copy Service
C OBd: Copy Service Outer Bd U D: Use DF
NBT: Next Base Type E: ECMP N: Next-Hop NB Id: Next Base Id
NH cnt: Next Hop Count VrfId: Vrf Id
Vrf Name: Vrf Name IP: IP Address
Mac: Mac L3 IfId: L3 IfId
L3IfName: L3 If Name L2 IfId: L2 IfId
L2IfName: L2 If Name
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Remote Tep Count: 15
================================================================================================================================================================================================
=======
I N N |
E Vrf Hw V I P P P I I C U B B NH | Vrf L3 L3 L2 L2
IfId Ifname T Lid VrfId Name IP Enc P L 4 6 M I C OBd D T Id Cnt | VrfId Name IP Mac IfId IfName IfId IfName
================================================================================================================================================================================================
=======
18010002 Tunnel2 I 3005 2 overlay-1 192.168.120.670 0 0 0 0 0 0 0 1 0 E 2 2 2 overlay-1 0.0.0.0 0d:0d:0d:0d:0d:00 1a030001 Eth1/49.1 1a030000 Eth1/4
9
2 overlay-1 0.0.0.0 0d:0d:0d:0d:0d:00 1a031002 Eth1/50.2 1a031000 Eth1/5
0
Este resultado nos proporciona algunos valores que nos preocupan:
IfId: ID de interfaz asignada al túnel
IP: IP del destino. Esto debe coincidir con el ELTMC.
L3 IfId - Las interfaces de capa 3 que el switch puede utilizar para reenviar al destino adecuado.
Una vez que conozcamos el IfId, podemos verificar que la encapsulación que obtuvimos en el elam coincide con el destino del túnel:
module-1(DBG-TAH-elam-insel9)# show platform internal hal tunnel rtep apd
Non-Sandbox Mode
LEGEND:
-------
ifId: Interface Id IP: IP address
HwVrfId: Hardware Vrf Id SrcTepIdx: Source Tep Index
BDXlate: Egress BDXlate DstInfoIdx: Destination info index
RwEncapIdx: Rw Encap Index ECMPIdx: ECMP Index
Num: Number of hops ECMPMbrIdx: ECMP member Index
L2 Index: L2 Index RwDmacIdx: Rw Dmax Index
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Remote Tep Count: 15
==============================================================================================================================
ifId IP HwVrfId BDXlate SrcTepIdx DstInfoIdx RwEncapIdx ECMPIdx ECMPMbrIdx Num L2Index RwDmacIdx
==============================================================================================================================
18010002 192.168.120.67 2 1 3a9a 3005 6 0 0 2 1a030000 0 <---- RwEncapIdx is 6! Same as the "encap_idx" in the ELAM Report.
1a031000 1
Este túnel tiene un RwEncapIdx (Re-Write Encap Index) de 6, que es lo que se visualizó en el intervalo.
1 EP —> L3 out - Flujo ruteado
Topología
En este ejemplo, rastrearemos el flujo de paquetes de un paquete desde el EP1 que envía ICMP a un loopback en un N5K que ejecuta OSPF. N5K se conecta a través de un L3Out en el mismo par de switches EX.
Dado que hemos verificado la programación de EP local al principio de este documento, supongamos que el EP se aprende correctamente en el hardware y continúe con la verificación de la ruta.
Primero, verifiquemos el estado OSPF y la tabla de ruteo:
leaf6# show ip ospf neighbors vrf jr:sb OSPF Process ID default VRF jr:sb Total number of neighbors: 2 Neighbor ID Pri State Up Time Address Interface 27.27.27.1 1 FULL/BDR 00:22:39 10.10.27.1 Vlan28 <---- Leaf5 27.27.27.3 1 FULL/DROTHER 00:22:37 10.10.27.3 Vlan28 <---- N5K
leaf6# show ip route vrf jr:sb 100.100.100.100
IP Route Table for VRF "jr:sb"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]
'%<string>' in via output denotes VRF <string>
100.100.100.100/32, ubest/mbest: 1/0
*via 10.10.27.3, vlan28, [110/5], 00:16:58, ospf-default, intra
Sabemos que la tabla de ruteo muestra el salto siguiente como el 5K a 10.10.27.3. Buen comienzo, pero ¿cómo podemos verificar qué hardware tiene?
Primero verifiquemos la tabla de adyacencia en el hardware para asegurarnos de que ARP haya resuelto a 10.10.27.3 y que esté programado con la interfaz correcta:
leaf6# vsh_lc module-1# show forwarding adjacency IPv4 adjacency information, adjacency count 20 next-hop rewrite info interface phy i/f -------------- -------------- --------------- --------------- 10.10.27.1 0022.bdf8.19ff Vlan28 Tunnel3 10.10.27.3 8c60.4f02.88fc Vlan28 port-channel5
Las direcciones MAC coinciden con las del 5K:
ACI-5548-B# show interface vlan 3117 Vlan3117 is up, line protocol is up Hardware is EtherSVI, address is 8c60.4f02.88fc Internet Address is 10.10.27.3/29 MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec
En las plataformas EX, hay un "hw_vrf_idx" asignado a un VRF. Se hará referencia a este índice cuando verifiquemos la programación de hardware. Vamos a encontrar el índice:
module-1# show system internal eltmc info vrf jr:sb
VRF-TABLE: jr:sb
vrf_type: tenant ::: context_id: 6
overlay_index: 0 ::: vnid: 2129921
scope: 5 ::: sclass: 16386
v4_table_id: 0x5 ::: v6_table_id: 0x80000005
intf_count: 5 ::: intrn_vlan_id: 0
VRF Intf: Vlan11 ::: src_plcy_incomp: 0
vnid_hex: 0x208001 ::: ingress_policy: 0x1
vrf_intf_list: Vlan28,Vlan16,Vlan9,Vlan11,loopback2,
hw_vrf_idx: 4612 ::: nb_egr_outer_bd: 0
sb_egr_outer_bd: 0
vrf_bd_list: 28,16,11,9,
sb_egr_outer_bd: 0 ::: sdk_vrf_id: 5
[SDK Info]:
vrf_name: jr:sb
vrf_id: 5 ::: hw_vrf_idx: 4612
vrf_vnid: 2129921 ::: is_infra: 0
tornbinfrahwbd: 0 ::: torsbinfrahwbd: 0
ingressBdAclLabel: 0 ::: ingBdAclLblMask: 0
egressBdAclLabel: 0 ::: egrBdAclLblMask: 0
sg_label: 5 ::: sclass: 16386
sp_incomplete: 1 ::: sclassprio: 3
[SDB INFO]:
v4 table
vrf type: 1
vrf id: 5
vnid: 2129921
internal infra vlan: 0
external router mac:00:22:bd:f8:19:ff
v6 table
vrf type: 1
vrf id: 5
vnid: 2129921
internal infra vlan: 0
external router mac:00:22:bd:f8:19:ff
::::
Después de detectar la adyacencia, HAL debe programar una ruta. Podemos verificar esto usando el siguiente comando:
module-1# show platform internal hal l3 routes | head ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ LEGEND: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ LID: Logical ID RID: Route ID PID: Physical ID NB-ID:Next-Base ID HIT IDX: Next-Hop HitIndex CLP : Class Priority TBI: Trie Base Index | SC : Sup-Copy SSR: Src Sup-Redirect DSR: Dst Sup-Redirect TDD :TTL Disable NB: NextBaseType SDC : Src Direct Connect TRO: Trie Offset | SPI: Src Policy Inc DPI: Dst Policy Inc DR : Default Route LE :Learn Enable [E:Ecmp/A:Adj] ILL : Is Link Local ISS: Is Shared Services | RT : Route Type FWD: Forwarding HR : Host Routes EP :Ext Prefixes DLR: Default Lpm Route CLSS: Class Id RDEL: Route in Deletion | BNE: Bind Notify Enable SNE: Sclass Notify Enable BE : Bounce Enable IDL :Ivxlan DoNotLearn DL : Dest Local SA : Src Only AI : Age Interval | SF : Static Flag SH : Src Hit DH: Dest Hit | module-1# show platform internal hal l3 routes ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ LEGEND: | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ LID: Logical ID RID: Route ID PID: Physical ID NB-ID:Next-Base ID HIT IDX: Next-Hop HitIndex CLP : Class Priority TBI: Trie Base Index | SC : Sup-Copy SSR: Src Sup-Redirect DSR: Dst Sup-Redirect TDD :TTL Disable NB: NextBaseType SDC : Src Direct Connect TRO: Trie Offset | SPI: Src Policy Inc DPI: Dst Policy Inc DR : Default Route LE :Learn Enable [E:Ecmp/A:Adj] ILL : Is Link Local ISS: Is Shared Services | RT : Route Type FWD: Forwarding HR : Host Routes EP :Ext Prefixes DLR: Default Lpm Route CLSS: Class Id RDEL: Route in Deletion | BNE: Bind Notify Enable SNE: Sclass Notify Enable BE : Bounce Enable IDL :Ivxlan DoNotLearn DL : Dest Local SA : Src Only AI : Age Interval | SF : Static Flag SH : Src Hit DH: Dest Hit | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | | | | | LID |<------------------ Trie ------------->|<Dleft Trie>| | | VRF | Prefix/Len | RT| RID | LID | Type| PID | FPID/| HIT |N| NB-ID | NB Hw | PID | FPID/| TBI |TRO|Ifindex|CLSS|CLP| AI |SH|DH| Flags | |-----|-------------------------------------------|---|-----|----------|-----| | TID | IDX |B| | Idx | | TID |---------|---|-------|----|---|----|--|--|------------------| |-----|-------------------------------------------|---|-----|----------|-----|<------------------ DLEFT ------------>|-----|------|---------|---|-------|----|---|----|--|--|------------------| | | | | | | | PID | FPID/| HIT |N| NB-ID | NB Hw | | | | | | | | | | | | | | | | | | | | TID | IDX |B| | Idx | | | | | | | | | | | | | | | | | | |<------------------ TCAM ------------->| | | | | | | | | | | | | | | | | | | PID | TCAM | HIT |N| NB-ID | NB Hw | | | | | | | | | | | | | | | | | | | | ID | IDX |B| | Idx | | | | | | | | | | | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |Sandbox_ID: 0 Asic Bitmap: 0x0 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- module-1# show platform internal hal l3 routes | egrep 100.100.100.100 | 4612| 100.100.100.100/ 32| UC| e4| 4a04| TRIE| 10| 5/ 0| 6010|A| 7567| 802e| 186a| 1/ 2| 10| 0| 0| f| 3| 0| 0| 0|spi,dpi
Esta salida nos proporciona información sobre la ruta del siguiente salto. 4612 es el hw_vrf_idx del VRF jr:sb. Para que podamos verificar el próximo salto, el "NB Hw Idx" en TCAM se usará en la siguiente tabla:
module-1# show platform internal hal l3 nexthops
Non-Sandbox Mode
LEGEND:
-------
NHOP ID : Nhop Identifier (Hex) CONS : H/W S/W info Consistency
TYPE : Nexthop Type ACTN : Nexthop Action
Vrf : L3 Vrf of the Nhop L3 INTF : L3 interface index (Hex)
L2 INTF : L2 interface index (Hex) BDID Or RwVRF : Bridge Domain Id Or Rewrite Vrfid (Hex)
INFR : ACI Infra valid PVRF : Preserve VRF
LRN : Learn Enabled VRFR : VRF Rewrite
PID : Physical ID FPID : FP of this nexthop
TLID : Tile Id within FP HIT IDX : Location of this Nhop (Hex)
Mac Entry:
TYP : Type INTF : Interface related Info (Hex)
LRN : Learn Info DL : Destination Local
MLD : Unused VNB : Vnid use BD
DFL : Default Entry VLD : MacKey Valid
FT : FID Type FV : FID Valid
FID : FID value (Hex) Mac : L2 MAC Address
L2 Ifabric Info:
CLSS : Source Class CLP : Source Class Priority
EPG : EndPoint Group BNE : Bind Notification Enabled
SNE : Source Address Notification Enabled CNE : Source class Notification Enabled
DL : iVxlan DL SPI : Source Policy Incomplete
DPI : Dest Policy Incomplete
IP Address : IP address
Sandbox_ID: 0 Asic Bitmap: 0x0
Summary info for 31 L3 Nexthop objects
C T A BDID I P V T |---------------------Mac Entry-------------------|----L2 Ifabric Info----|
NHOP O Y C L3 L2 Or N V L R L HIT|T L M V D V|--------------Mac Key-------| C B S C S D|
ID N P T INTF INTF RwVRF F R R F FP I IDX|Y INTF R D L N F L|F F FID | L N N N D P P|
(Hex) S E N Vrf (H) (H) (H) R F N R PID ID D (H)|P (H) N L D B L D|T V (H) Mac |CLSS P EPG E E E L I I| IP Address
--------+-+-+-+----+--------+--------+----+-+-+-+-+----+--+-+----+-+------+-+-+-+-+-+-+-+-+------+-----------------+----+-+----+-+-+-+-+-+-+-----------------------------
module-1# show platform internal hal l3 nexthops | grep 802e
7567 N I F 5 901001c 16000004 1c 0 0 0 0 2e 9 0 802e 0 22 0 0 0 0 0 1 1 1 1214 8c:60:4f:02:88:fc 0 0 2c0d 0 0 0 0 0 0 10.10.27.3
Aquí, tomamos el "NB Hw Idx" y lo mapeamos al "HIT IDX". Esto nos muestra la entrada correspondiente a Next Hop MAC/IP. Esto equivale a ver "l3 defp show" y "l3 egress show" en Broadcom en switches de hoja ACI de primera generación.
Como podemos ver, la tabla tiene la información correcta:
L2 INTF: 0x16000004 —> The ifIndex of Port-channel 5
IDX DE HIT: El índice impulsado desde Nb Hw Idx en rutas hal l3
MAC: 8c:60:4f:02:88:fc —> MAC of next HOP SVI on 5K
EPG: CLASE DE EPG L3
IP Address: 10.10.27.3 —> IP de próximo salto de SVI en 5K
ELAM
leaf6# pwd
/var/sysmgr/tmp_logs
leaf6# cat elam_report.txt | grep ip.da
sug_pr_lu_vec_l3v.ip.da: 0x0000000000000000064646464
leaf6# cat elam_report.txt | grep ip.sa
sug_pr_lu_vec_l3v.ip.sa: 0x00000000000000000C0A8140A
leaf6# cat elam_report.txt | grep adj
sug_lurw_vec.dst_addr.adj: 0x8C604F0288FC
sug_lurw_vec.dst_addr.adj.padfield: 0x04F0288FC
sug_lurw_vec.dst_addr.adj.idx: 0x2318
sug_lurw_vec.adj_vld: 0x0
leaf6# cat elam_report.txt | grep macdarslt.hit_idx
sug_fpc_lookup_vec.fplu_vec.rslt.macdarslt.hit_idx: 0x802E
1 EP —> EP remoto o SVI - Verificación de columna
Topología
Lógica
En este ejemplo, rastrearemos el flujo de paquetes de un paquete desde EP1 destinado a una interfaz virtual conmutada por BD remota (SVI). El propósito de este ejemplo será verificar el reenvío de columna para asegurarse de que el paquete se envíe a la hoja correcta. Supongamos que el paquete fue enviado al proxy de columna en la hoja de ingreso.
En la columna vertebral, primero verifiquemos el protocolo del Consejo de Oráculos (COOP) para la IP de destino, ya que el paquete se envía al proxy de columna para una búsqueda:
calo1-spine1# show coop internal info ip-db | grep -A 10 192.168.20.1 IP address : 192.168.20.1 Vrf : 2129921 Flags : 0 EP vrf vnid : 2129921 EP IP : 192.168.20.1 Publisher Id : 10.0.224.88 Record timestamp : 11 04 2016 16:41:16 422062712 Publish timestamp : 11 04 2016 16:41:16 424633605 Seq No: 0 Remote publish timestamp: 01 01 1970 00:00:00 0 URIB Tunnel Info Num tunnels : 1 Tunnel address : 10.0.224.88 <---- REMOTE LEAF Tunnel ref count : 1
Verifiquemos qué hoja tiene esa dirección TEP:
spine1# acidiag fnvread | grep 10.0.224.88
105 1 calo1-leaf5 FDO20160TPS 10.0.224.88/32 leaf active 0
Dado que sabemos que el paquete ingresa en la columna en el Módulo 2, Puerto 6, podemos conectarlo al Módulo 2 y observar la disposición del puerto.
spine1# vsh
Cisco iNX-OS Debug Shell
This shell should only be used for internal commands and exists
for legacy reasons. User should use ibash infrastructure as this
will be deprecated.
calo1-spine1# attach module 2
Attaching to module 2 ...
To exit type 'exit', to abort type '$.'
No directory, logging in with HOME=/
Bad terminal type: "xterm-256color". Will assume vt100.
Cisco iNX-OS Debug Shell
This shell should only be used for internal commands and exists
for legacy reasons. User should use ibash infrastructure as this
will be deprecated.
Loading parse tree (LC). Please be patient...
module-2#
module-2# show platform internal hal l2 port gpd
Legend:
-------
IfId: Interface Id IfName: Interface Name
I P: Is PC Mbr IfId: Interface Id
Uc PC Cfg: UcPcCfg Idx Uc PC MbrId: Uc Pc Mbr Id
As: Asic AP: Asic Port
Sl: Slice Sp: Slice Port
Ss: Slice SrcId Ovec: Ovector (slice | srcid)
L S: Local Slot Reprogram:
L3: Is L3
P: PifTable Xla Idx: Xlate Idx
RP: Rw PifTable Ovx Idx: OXlate Idx
IP: If Profile Table N L3: Num. of L3 Ifs
RS: Rw SrcId Table NI L3: Num. of Infra L3 Ifs
DP: DPort Table Vif Tid: Vif Tid
SP: SrcPortState Table RwV Tid: RwVif Tid
RSP: RwSrcPortstate Table Ing Lbl: Ingress Acl Label
UC: UCPcCfg Egr Lbl: Egress Acl Label
UM: UCPcMbr Reprogram:
PROF ID: Lport Profile Id
VS: VifStateTable HI: LportProfile Hw Install
RV: Rw VifTable
Num. of Sandboxes: 1
Sandbox_ID: 0, BMP: 0x0
Port Count: 7
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1f5 SpInBndMgmt 0 9de 1a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-2d4 D-3e1 0 0 0 0 1 0
1a080000 Eth2/1 0 9a 1c 0 11 0 10 20 20 1 0 0 0 0 0 0 0 0 0 0 1 b b 1 1 D-f3 D-61 100 0 0 0 1 0
1a081000 Eth2/2 0 9b 22 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 1 c c 1 1 D-1ee D-30b 100 0 0 0 1 0
1a084000 Eth2/5 0 9e 1e 0 3d 1 14 28 a8 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 D-19a D-2ee 100 0 0 0 1 0
1a085000 Eth2/6 0 9f 24 0 39 1 10 20 a0 1 0 0 0 0 0 0 0 0 0 0 1 e e 1 1 D-87 D-184 100 0 0 0 1 0
1a086000 Eth2/7 0 a0 26 0 35 1 c 18 98 1 0 0 0 0 0 0 0 0 0 0 1 d d 1 1 D-1d0 D-357 100 0 0 0 1 0
1a088000 Eth2/9 0 a2 20 1 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-3ea D-1a9 100 0 0 0 1 0
Ethernet 2/6 es la interfaz que se conecta a la hoja 6 en ASIC 0 SLICE 1
Ahora sabemos en qué ASIC se ejecutará ELAM. ASIC 0.
module-2# debug platform internal tah elam asic 0 module-2(DBG-TAH-elam)# trigger reset module-2(DBG-TAH-elam)# trigger init in-select 13 out-select 0 module-2(DBG-TAH-elam-insel13)# set inner ipv4 src_ip 10.100.17.11 dst_ip 192.168.20.1 module-2(DBG-TAH-elam-insel13)# start stat module-2(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Armed module-2(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Triggered <---- Packet triggered from FM Asic 0 Slice 1 Status Triggered <---- Packet triggered from Front Panel
Si miramos el ELAM, podemos encontrar el Índice de Vectores:
Front Panel ELAM drove sug_elam_out_sidebnd_no_spare_vec.ovector_idx: 0xB8
Ahora, ¿cómo mapeamos 0xb8 a un puerto? Como sabemos que el paquete debe enviarse a un módulo de fabric (FM) para una búsqueda, podemos observar la asignación de puertos internos para encontrar el FM más sencillo:
module-2# show platform internal hal l2 internal-port pi
Num. of Sandboxes: 1
Legend:
-------
IfId: Interface Id IfName: Interface Name
As: Asic AP: Asic Port
Sl: Slice SP: Slice Port
Ss: Slice SrcId Ovec: Ovector
UcPcCfgId: Uc Pc CfgId Lb Mbrid: LB MbrId
Sandbox_ID: 0, BMP: 0x0
Internal Port Count: 32
======================================================================
UcPc Lb
IfId IfName As AP Sl SP Ss Ovec CfgId MbrId
======================================================================
7d - 0 21 0 20 38 38 0 4
7e - 0 29 1 0 0 80 0 8
7f - 1 21 0 20 38 38 0 c
80 - 1 29 1 0 0 80 0 10
81 - 2 21 0 20 38 38 0 14
82 - 2 29 1 0 0 80 0 18
83 - 3 21 0 20 38 38 0 1c
84 - 3 29 1 0 0 80 0 20
95 - 0 19 0 18 30 30 0 3
96 - 0 49 1 20 38 b8 0 7
97 - 1 19 0 18 30 30 0 b
98 - 1 49 1 20 38 b8 0 f
99 - 2 19 0 18 30 30 0 13
9a - 2 49 1 20 38 b8 0 17
9b - 3 19 0 18 30 30 0 1b
9c - 3 49 1 20 38 b8 0 1f
ad - 0 25 0 24 40 40 0 1
ae - 0 41 1 18 30 b0 0 6
af - 1 25 0 24 40 40 0 9
b0 - 1 41 1 18 30 b0 0 e
b1 - 2 25 0 24 40 40 0 11
b2 - 2 41 1 18 30 b0 0 16
b3 - 3 25 0 24 40 40 0 19
b4 - 3 41 1 18 30 b0 0 1e
dd - 0 15 0 14 28 28 0 2
de - 0 4d 1 24 40 c0 0 5
df - 1 15 0 14 28 28 0 a
e0 - 1 4d 1 24 40 c0 0 d
e1 - 2 15 0 14 28 28 0 12
e2 - 2 4d 1 24 40 c0 0 15
e3 - 3 15 0 14 28 28 0 1a
e4 - 3 4d 1 24 40 c0 0 1d
Usando ASIC0 / Ovec B8, obtenemos MbrId 0x7, Slice no importa.
Este MbrId es la interfaz en USD que se asigna a una interfaz en un FM. Tenga en cuenta que este IdMbr está en hexadecimal y debe convertirse a decimal.
Podemos averiguar qué FM mirando las interfaces USD e inspeccionando el Puerto 7:
module-2# show platform internal usd port info | grep -A 3 "Int 7"(if the interface has multiple digits, will be "Int##" with no space)
Port 73.0 (Int 7) : Admin UP Link UP Remote slot22.asic0
slice:1 slice port:32 lcl srcid:56 gbl srcid:184
asic mrl:0xd07c010, mac mrl:0x12c84010, mac:16, chan:0
speed 106G serdes: 0x328 0x329 0x32a 0x32b
La "ranura" se basa en 0 y la numeración FM se basa en 1, por lo que necesitamos agregar 1 al número que se enumera aquí. Esto significa que el paquete debe enviarse a FM 23.
IP sintética
Al igual que en Alpine, hay una IP sintética utilizada como dirección IP externa para determinar el hash para la búsqueda COOP. Para encontrar esto, necesita ejecutar este comando y grep para la IP DST interna:
module-2(DBG-TAH-elam-insel7)# show forwarding route synthetic vrf all | grep 192.168.20.1 SYNTH-88 1.203.211.185/32 0x208001 192.168.20.1
Esto nos muestra que 1.203.211.185 es nuestra IP sintética. Basándonos en esto, también podemos configurar la "IP de DST externa" en nuestro equipo FM para que sea esto. Deberíamos activar en el FM:
Módulo de fabric ELAM
module-23(DBG-TAH-elam-insel7)# trigger reset module-23(DBG-TAH-elam)# trigger init in-select 13 out-select 0 module-23(DBG-TAH-elam-insel13)# set outer ipv4 dst_ip 1.203.211.185 <----- DST IP IS THE SYNTHETIC IP module-23(DBG-TAH-elam-insel13)# set inner ipv4 src_ip 10.100.17.11 dst_ip 192.168.20.1 module-23(DBG-TAH-elam-insel13)# start stat module-23(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Armed Asic 0 Slice 2 Status Armed Asic 0 Slice 3 Status Armed Asic 0 Slice 4 Status Armed Asic 0 Slice 5 Status Armed module-23(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Armed Asic 0 Slice 2 Status Triggered <---- Triggered on SLICE 2 Asic 0 Slice 3 Status Armed Asic 0 Slice 4 Status Armed Asic 0 Slice 5 Status Armed
Obviamente, volteemos el informe completo, pero echemos un vistazo a ovector_idx para este paquete que activamos:
lac_elam_out_sidebnd_no_repuesto_vec.ovector_idx: 0x20 <— Índice de vector utilizado en el comando siguiente
¿Cómo averiguamos qué interfaz tiene ese vector? En el FM, ejecute esto:
** Debido al error CSCvf42796 
, añada todos los comandos FM con "| no más". De lo contrario, es posible que algunas entradas de la tabla no se muestren en el resultado final.
module-23(DBG-TAH-elam-insel13)# show platform internal hal l2 port gpd | no-more
Legend:
-------
IfId: Interface Id IfName: Interface Name
I P: Is PC Mbr IfId: Interface Id
Uc PC Cfg: UcPcCfg Idx Uc PC MbrId: Uc Pc Mbr Id
As: Asic AP: Asic Port
Sl: Slice Sp: Slice Port
Ss: Slice SrcId Ovec: Ovector (slice | srcid)
L S: Local Slot Reprogram:
L3: Is L3
P: PifTable Xla Idx: Xlate Idx
RP: Rw PifTable Ovx Idx: OXlate Idx
IP: If Profile Table N L3: Num. of L3 Ifs
RS: Rw SrcId Table NI L3: Num. of Infra L3 Ifs
DP: DPort Table Vif Tid: Vif Tid
SP: SrcPortState Table RwV Tid: RwVif Tid
RSP: RwSrcPortstate Table Ing Lbl: Ingress Acl Label
UC: UCPcCfg Egr Lbl: Egress Acl Label
UM: UCPcMbr Reprogram:
PROF ID: Lport Profile Id
VS: VifStateTable HI: LportProfile Hw Install
RV: Rw VifTable
Num. of Sandboxes: 1
Sandbox_ID: 1, BMP: 0x1
Port Count: 8
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
ae fc0-lc1:0-0 1 0 3 0 11 0 10 20 20 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
af fc0-lc1:0-1 1 0 4 0 3d 2 c 18 98 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
b0 fc0-lc1:1-0 1 0 13 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
b1 fc0-lc1:1-1 1 0 14 0 39 2 8 10 90 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
b2 fc0-lc1:2-0 1 0 23 0 5d 3 14 28 e8 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
b3 fc0-lc1:2-1 1 0 24 0 21 1 8 10 50 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
b4 fc0-lc1:3-0 1 0 33 0 51 3 8 10 d0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - - 0 0 0 0 0 0
Ese ovector se mapea a LC1 (tarjeta de línea en la ranura 2, ya que está basada en 0), en ASIC 0 / SLICE 0. Como sabemos por el ELAM ejecutado originalmente en la LC, activamos en esta porción:
module-2# debug platform internal tah elam asic 0 module-2(DBG-TAH-elam)# trigger reset module-2(DBG-TAH-elam)# trigger init in-select 13 out-select 0 module-2(DBG-TAH-elam-insel13)# set inner ipv4 src_ip 10.100.17.11 dst_ip 192.168.20.1 module-2(DBG-TAH-elam-insel13)# start stat module-2(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Armed Asic 0 Slice 1 Status Armed module-2(DBG-TAH-elam-insel13)# stat ELAM STATUS =========== Asic 0 Slice 0 Status Triggered <---- Packet triggered from FM Asic 0 Slice 1 Status Triggered <---- Packet triggered from Front Panel
El ovector en este ELAM es sug_elam_out_sidebnd_no_repuesto_vec.ovector_idx: 0x98, que sabemos por el "hal l2 port gpd", se asigna a la interfaz correcta en la LC:
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1f5 SpInBndMgmt 0 9de 1a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-2d4 D-3e1 0 0 0 0 1 0
1a080000 Eth2/1 0 9a 1c 0 11 0 10 20 20 1 0 0 0 0 0 0 0 0 0 0 1 b b 1 1 D-f3 D-61 100 0 0 0 1 0
1a081000 Eth2/2 0 9b 22 0 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 1 c c 1 1 D-1ee D-30b 100 0 0 0 1 0
1a084000 Eth2/5 0 9e 1e 0 3d 1 14 28 a8 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 D-19a D-2ee 100 0 0 0 1 0
1a085000 Eth2/6 0 9f 24 0 39 1 10 20 a0 1 0 0 0 0 0 0 0 0 0 0 1 e e 1 1 D-87 D-184 100 0 0 0 1 0
1a086000 Eth2/7 0 a0 26 0 35 1 c 18 98 1 0 0 0 0 0 0 0 0 0 0 1 d d 1 1 D-1d0 D-357 100 0 0 0 1 0
1a088000 Eth2/9 0 a2 20 1 d 0 c 18 18 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-3ea D-1a9 100 0 0 0 1 0
Ethernet 2/7 es la interfaz que se conecta a la hoja 5.
Escenario adicional: Obtención de un vector que no está en la salida "hal internal-port pi"
Topología
Lógica
Hay algunos escenarios donde capturamos un paquete que no tiene un Ovector en la tabla "show platform internal hal l2 internal-port pi". En el siguiente escenario, realmente estamos capturando el paquete que regresa de FM, así que necesitamos mirar una tabla diferente para ver qué puerto del panel frontal está seleccionando el paquete.
Tenga en cuenta que la topología anterior es un entorno completamente diferente donde se aprende el tráfico de tránsito (sin ruteo de proxy). El módulo es un N9K-X9732C-EX.
@module-1# debug platform internal tah elam asic 3
@module-1(DBG-elam)# trigger reset
@module-1(DBG-elam)# trigg init in-select 13 out-select 0
@module-1(DBG-elam-insel13)# set inner ipv4 src_ip 192.85.1.2 dst_ip 192.85.2.67
@module-1(DBG-elam-insel13)# star
@module-1(DBG-elam-insel13)# stat
ELAM STATUS
===========
Asic 3 Slice 0 Status Armed
Asic 3 Slice 1 Status Triggered
@module-1(DBG-elam-insel13)# report | grep ovector
sug_elam_out_sidebnd_no_spare_vec.ovector_idx: 0xA0 <<<<<<<<<<<<<<<<< now we look for this in the "hal internal-port pi" command
@module-1# show platform internal hal l2 internal-port pi
No sandboxes exist
Num. of Sandboxes: 1
Legend:
-------
IfId: Interface Id IfName: Interface Name
As: Asic AP: Asic Port
Sl: Slice SP: Slice Port
Ss: Slice SrcId Ovec: Ovector
UcPcCfgId: Uc Pc CfgId Lb Mbrid: LB MbrId
Sandbox_ID: 0, BMP: 0x0
Internal Port Count: 24
======================================================================
UcPc Lb
IfId IfName As AP Sl SP Ss Ovec CfgId MbrId
======================================================================
7d - 0 21 0 20 38 38 0 4
7e - 0 29 1 0 0 80 0 8
7f - 1 21 0 20 38 38 0 c
80 - 1 29 1 0 0 80 0 10
81 - 2 21 0 20 38 38 0 14
82 - 2 29 1 0 0 80 0 18
83 - 3 21 0 20 38 38 0 1c
84 - 3 29 1 0 0 80 0 20
ad - 0 25 0 24 40 40 0 1
ae - 0 41 1 18 30 b0 0 6
af - 1 25 0 24 40 40 0 9
b0 - 1 41 1 18 30 b0 0 e
b1 - 2 25 0 24 40 40 0 11
b2 - 2 41 1 18 30 b0 0 16
b3 - 3 25 0 24 40 40 0 19
b4 - 3 41 1 18 30 b0 0 1e
dd - 0 15 0 14 28 28 0 2
de - 0 4d 1 24 40 c0 0 5
df - 1 15 0 14 28 28 0 a
e0 - 1 4d 1 24 40 c0 0 d
e1 - 2 15 0 14 28 28 0 12
e2 - 2 4d 1 24 40 c0 0 15
e3 - 3 15 0 14 28 28 0 1a
e4 - 3 4d 1 24 40 c0 0 1d <<<<<<< we cant find an entry that matches 0xA0
@module-1# show platform internal hal l2 port gpd
Legend:
-------
<snip>
Sandbox_ID: 0, BMP: 0x0
Port Count: 6
============================================================================================================================================
Uc Uc | Reprogram | | Rep |
I PC Pc L | R I R D R U U X | L Xla Ovx N NI Vif RwV Ing Egr | V R | PROF H
IfId Ifname P Cfg MbrID As AP Sl Sp Ss Ovec S | P P P S P Sp Sp C M L | 3 Idx Idx L3 L3 Tid Tid Lbl Lbl | S V | ID I
=============================================================================================================================================
1f5 SpInBndMgmt 0 9de 1a 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D-2d4 D-3e1 0 0 0 0 1 0
1a000000 Eth1/1 0 1b 1c 0 11 0 10 20 20 1 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 D-13b D-33b 500 0 1 0 3 0
1a01c000 Eth1/29 0 37 1e 3 3d 1 14 28 a8 1 0 0 0 0 0 0 0 0 0 0 1 8 8 1 1 D-3f2 D-7a 100 0 0 0 2 0
1a01d000 Eth1/30 0 38 20 3 39 1 10 20 a0 1 0 0 0 0 0 0 0 0 0 0 1 5 5 1 1 D-36e D-362 100 0 0 0 2 0
1a01e000 Eth1/31 0 39 22 3 35 1 c 18 98 1 0 0 0 0 0 0 0 0 0 0 1 9 9 1 1 D-273 D-8 100 0 0 0 2 0
1a01f000 Eth1/32 0 3a 24 3 31 1 8 10 90 1 0 0 0 0 0 0 0 0 0 0 1 a a 1 1 D-154 D-5d 100 0 0 0 2 0
1/30 es la interfaz phys que se conecta a la hoja 102, verificada por topología, ASIC 3, Slice 1
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