Sommario

Introduzione

Prerequisiti

Requisiti

Componenti usati

Panoramica della topologia

Stati BFD

Scenari

Scenario 1. motivo dell'instabilità:bfd-Deleted

Scenario 2. flap-reason:timeout

Scenario 3. motivo dell'instabilità:na

Scenario 4. motivo dell'instabilità:disattivazione remota

Informazioni correlate

Introduzione

Questo documento descrive i vari motivi dell'instabilità di BFD (Bidirectional Forwarding Detection) su un router Cisco vEdge.

Prerequisiti

Requisiti

Cisco raccomanda la conoscenza della soluzione Cisco SDWAN.

Componenti usati

Questo documento è basato sul router Cisco cloud vEdge con versione 19.2.1.

Le informazioni discusse in questo documento fanno riferimento a dispositivi usati in uno specifico ambiente di emulazione. Su tutti i dispositivi menzionati nel documento la configurazione è stata ripristinata ai valori predefiniti. Se la rete è operativa, valutare attentamente eventuali conseguenze derivanti dall'uso dei comandi.

Panoramica della topologia

Il documento non è limitato a nessuna topologia specifica.

Indirizzi IP e colori di alcuni componenti importanti in questo documento:

Componente

System-IP

IP VPN 0 / Colore

IP VPN 0 / Colore

VEDGE-1

10.13.13.13

192.168.1.4 / mpls

192.168.2.4 / mpls

VEDGE-2

10.15.15.15

192.168.1.8 / biz-internet

192.168.2.8 / biz-internet

vSmart

10.8.8.8

192.168.1.3 / impostazione predefinita

N/D

vManage

10.7.7.7

192.168.1.1 / impostazione predefinita

N/D

Stati BFD

I valori possibili di 'flap-reason' su un router Cisco vEdge sono:

1. bfd-Deleted - Il BFD diminuisce perché è stato eliminato dal piano di controllo.

Quando si elimina un DCF vengono generate due notifiche. Uno per BFD down e uno quando BFD viene eliminato.

2. timeout - Nessuna risposta BFD dall'estremità remota.

3. remote-down - L'estremità remota ha inviato un pacchetto BFD per segnalare che è passata allo stato down.4.

4. na - non applicabile. Questa opzione viene impostata quando la sessione BFD viene creata per la prima volta e quando viene visualizzata la sessione BFD.

Scenari

Scenario 1. motivo dell'instabilità:bfd-Deleted

Eseguire un port-hop sul router VEDGE-1 e riprodurre questo scenario:

HUB-1# request port-hop color biz-internet

VEDGE-1# show log tail -f /var/log/tmplog/vdebug

local7.debug: Mar 20 09:29:21 VEDGE-1 VDAEMON[1136]: vdaemon_disable_my_tloc[1308]: %VDAEMON_DBG_EVENTS-1: Disabling tloc ge0_1.

local7.debug: Mar 20 09:29:21 VEDGE-1 VDAEMON[1136]: vdaemon_send_tloc_info[8282]: %VDAEMON_DBG_MISC-1: Sending TLOC: ifname:ge0_1 color:biz-internet spi:1499 smarts:1 manages:1 state:DOWN LR encap: 0 LR hold time : 7000 Pairwise-Keys Disabled  key-id 0

local7.info: Mar 20 09:29:21 VEDGE-1 VDAEMON[1136]: %Viptela-VEDGE-1-vdaemon-6-INFO-1400002: Notification: 3/20/2020 9:29:21 control-connection-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 personality:vEdge peer-type:vsmart peer-system-ip:10.8.8.8 peer-vmanage-system-ip:0.0.0.0 public-ip:192.168.1.3 public-port:12946 src-color:biz-internet remote-color:default uptime:"0:00:35:57" new-state:down

local7.info: Mar 20 09:29:21 VEDGE-1 VDAEMON[1136]: %Viptela-VEDGE-1-vdaemon-6-INFO-1400002: Notification: 3/20/2020 9:29:21 control-connection-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 personality:vEdge peer-type:vmanage peer-system-ip:10.7.7.7 peer-vmanage-system-ip:0.0.0.0 public-ip:192.168.1.1 public-port:12946 src-color:biz-internet remote-color:mpls uptime:"0:01:56:34" new-state:down

local7.info: Mar 20 09:29:21 VEDGE-1 FTMD[1126]: %Viptela-VEDGE-1-ftmd-6-INFO-1400002: Notification: 3/20/2020 9:29:21 bfd-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 src-ip:192.168.2.4 dst-ip:192.168.1.6 proto:ipsec src-port:12406 dst-port:12347 local-system-ip:10.13.13.13 local-color:"biz-internet" remote-system-ip:10.14.14.14 remote-color:"mpls" new-state:down deleted:false flap-reason:bfd-deleted

Controllare BFD e controllare il tempo di attività della connessione su biz-internet:

VEDGE-1# show control connections | t

LOCAL    LOCAL                                                                                                                       CFG     V

PEER     SITE  DOMAIN  PRIVATE  PRIVATE  PUBLIC    PUBLIC  SYSTEM                                         PRIVATE   PRIVATE                     CONTROLLER  SYSTEM  ORG   BEHIND

INSTANCE  TYPE     ID    ID      IP       PORT     IP        PORT    IP       PROTOCOL  LOCAL COLOR   REMOTE COLOR  IP        PORT     STATE  UPTIME      GROUP ID    IP      NAME  PROXY

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

0         vsmart   8     1       192.168.1.4  12366    192.168.1.3   12946   10.8.8.8  dtls      mpls          default       192.168.1.3   12946    up     0:00:03:47  0           -       -     No

0         vsmart   8     1       192.168.2.4  12426    192.168.1.3   12946   10.8.8.8  dtls      biz-internet  default       192.168.1.3   12946    up     0:00:01:52  0           -       -     No

0         vbond    0     0       192.168.1.4  12366    192.168.1.10  12346   0.0.0.0  dtls       mpls          mpls          192.168.1.10  12346    up     0:00:03:47  0           -       -     -

0         vbond    0     0       192.168.2.4  12426    192.168.1.10  12346   0.0.0.0  dtls       biz-internet  biz-internet  192.168.1.10  12346    up     0:00:00:31  0           -       -     -

0         vmanage  8     0       192.168.2.4  12426    192.168.1.1   12946   10.7.7.7  dtls      biz-internet  mpls          192.168.1.1   12946    up     0:00:01:52  0           -       -     No

VEDGE-1# sh bfd sess | t

SRC    DST                 SITE                                     DETECT      TX

SRC IP   DST IP    PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR         STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

---------------------------------------------------------------------------------------------------------------------------------------------

192.168.1.4  192.168.1.6   ipsec  12366  12347  10.14.14.14  14    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.2.6   ipsec  12366  12387  10.14.14.14  14    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.1.6   ipsec  12426  12347  10.14.14.14  14    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.2.6   ipsec  12426  12387  10.14.14.14  14    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

192.168.1.4  192.168.1.8   ipsec  12366  12406  10.15.15.15  15    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.2.8   ipsec  12366  12366  10.15.15.15  15    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.1.8   ipsec  12426  12406  10.15.15.15  15    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.2.8   ipsec  12426  12366  10.15.15.15  15    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

192.168.1.4  192.168.1.11  ipsec  12366  12346  10.16.16.16  16    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.2.11  ipsec  12366  12426  10.16.16.16  16    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.1.11  ipsec  12426  12346  10.16.16.16  16    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.2.11  ipsec  12426  12426  10.16.16.16  16    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

192.168.1.4  192.168.1.12  ipsec  12366  12426  10.17.17.17  17    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.2.12  ipsec  12366  12406  10.17.17.17  17    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.1.12  ipsec  12426  12426  10.17.17.17  17    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.2.12  ipsec  12426  12406  10.17.17.17  17    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

192.168.1.4  192.168.1.14  ipsec  12366  12426  10.18.18.18  18    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.2.14  ipsec  12366  12426  10.18.18.18  18    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.1.14  ipsec  12426  12426  10.18.18.18  18    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.2.14  ipsec  12426  12426  10.18.18.18  18    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

192.168.1.4  192.168.3.40  ipsec  12366  12366  10.19.19.19  19    mpls          mpls          up     7           1000      0:00:03:48  0

192.168.1.4  192.168.4.40  ipsec  12366  12366  10.19.19.19  19    mpls          biz-internet  up     7           1000      0:00:03:48  0

192.168.2.4  192.168.3.40  ipsec  12426  12366  10.19.19.19  19    biz-internet  mpls          up     7           1000      0:00:01:55  0

192.168.2.4  192.168.4.40  ipsec  12426  12366  10.19.19.19  19    biz-internet  biz-internet  up     7           1000      0:00:01:55  0

È inoltre possibile cancellare una connessione di controllo in VEDGE-1 per verificare questo scenario (che disabilita anche una connessione TLOC):

local1.info: Mar 20 09:34:20 VEDGE-1 confd[897]: audit user: admin/60155 CLI 'clear control connections'

local7.info: Mar 20 09:34:20 VEDGE-1 VDAEMON[1136]: %Viptela-VEDGE-1-vdaemon-6-INFO-1400002: Notification: 3/20/2020 9:34:20 control-connection-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 personality:vEdge peer-type:vsmart peer-system-ip:10.8.8.8 peer-vmanage-system-ip:0.0.0.0 public-ip:192.168.1.3 public-port:12946 src-color:biz-internet remote-color:default uptime:"0:00:00:51" new-state:down

local7.info: Mar 20 09:34:20 VEDGE-1 VDAEMON[1136]: %Viptela-VEDGE-1-vdaemon-6-INFO-1400002: Notification: 3/20/2020 9:34:20 control-connection-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 personality:vEdge peer-type:vmanage peer-system-ip:10.7.7.7 peer-vmanage-system-ip:0.0.0.0 public-ip:192.168.1.1 public-port:12946 src-color:biz-internet remote-color:mpls uptime:"0:00:01:09" new-state:down

local7.info: Mar 20 09:34:20 VEDGE-1 FTMD[1126]: %Viptela-VEDGE-1-ftmd-6-INFO-1400002: Notification: 3/20/2020 9:34:20 bfd-state-change severity-level:major host-name:"VEDGE-1" system-ip:10.13.13.13 src-ip:192.168.2.4 dst-ip:192.168.1.6 proto:ipsec src-port:12426 dst-port:12347 local-system-ip:10.13.13.13 local-color:"biz-internet" remote-system-ip:10.14.14.14 remote-color:"mpls" new-state:down deleted:false flap-reason:bfd-deleted

Verificare i tempi di attività su mpls e biz-internet color questa volta:

VEDGE-1# sh bfd sess | t

SRC    DST                 SITE                                     DETECT      TX

SRC IP   DST IP    PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR         STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

---------------------------------------------------------------------------------------------------------------------------------------------

192.168.1.4  192.168.1.6   ipsec  12366  12347  10.14.14.14  14    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.2.6   ipsec  12366  12387  10.14.14.14  14    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.1.6   ipsec  12426  12347  10.14.14.14  14    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.2.6   ipsec  12426  12387  10.14.14.14  14    biz-internet  biz-internet  up     7           1000      0:00:01:55  2

192.168.1.4  192.168.1.8   ipsec  12366  12406  10.15.15.15  15    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.2.8   ipsec  12366  12366  10.15.15.15  15    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.1.8   ipsec  12426  12406  10.15.15.15  15    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.2.8   ipsec  12426  12366  10.15.15.15  15    biz-internet  biz-internet  up     7           1000      0:00:01:55  2

192.168.1.4  192.168.1.11  ipsec  12366  12346  10.16.16.16  16    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.2.11  ipsec  12366  12426  10.16.16.16  16    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.1.11  ipsec  12426  12346  10.16.16.16  16    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.2.11  ipsec  12426  12426  10.16.16.16  16    biz-internet  biz-internet  up     7           1000      0:00:01:55  2

192.168.1.4  192.168.1.12  ipsec  12366  12426  10.17.17.17  17    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.2.12  ipsec  12366  12406  10.17.17.17  17    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.1.12  ipsec  12426  12426  10.17.17.17  17    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.2.12  ipsec  12426  12406  10.17.17.17  17    biz-internet  biz-internet  up     7           1000      0:00:01:55  2

192.168.1.4  192.168.1.14  ipsec  12366  12426  10.18.18.18  18    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.2.14  ipsec  12366  12426  10.18.18.18  18    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.1.14  ipsec  12426  12426  10.18.18.18  18    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.2.14  ipsec  12426  12426  10.18.18.18  18    biz-internet  biz-internet  up     7           1000      0:00:01:55  2

192.168.1.4  192.168.3.40  ipsec  12366  12366  10.19.19.19  19    mpls          mpls          up     7           1000      0:00:01:37  2

192.168.1.4  192.168.4.40  ipsec  12366  12366  10.19.19.19  19    mpls          biz-internet  up     7           1000      0:00:01:37  2

192.168.2.4  192.168.3.40  ipsec  12426  12366  10.19.19.19  19    biz-internet  mpls          up     7           1000      0:00:01:55  2

192.168.2.4  192.168.4.40  ipsec  12426  12366  10.19.19.19  19    biz-internet  biz-internet  up     7           1000      0:00:01:54  3

VEDGE-1# show control connections | t

LOCAL    LOCAL                                                                                                                       CFG     V

PEER     SITE  DOMAIN  PRIVATE  PRIVATE  PUBLIC    PUBLIC  SYSTEM                                         PRIVATE   PRIVATE                     CONTROLLER  SYSTEM  ORG   BEHIND

INSTANCE  TYPE     ID    ID      IP       PORT     IP        PORT    IP       PROTOCOL  LOCAL COLOR   REMOTE COLOR  IP        PORT     STATE  UPTIME      GROUP ID    IP      NAME  PROXY

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

0         vsmart   8     1       192.168.1.4  12366    192.168.1.3   12946   10.8.8.8  dtls     mpls          default       192.168.1.3   12946    up     0:00:01:41  0           -       -     No

0         vsmart   8     1       192.168.2.4  12426    192.168.1.3   12946   10.8.8.8  dtls     biz-internet  default       192.168.1.3   12946    up     0:00:01:59  0           -       -     No

0         vbond    0     0       192.168.1.4  12366    192.168.1.10  12346   0.0.0.0   dtls     mpls          mpls          192.168.1.10  12346    up     0:00:01:42  0           -       -     -

0         vbond    0     0       192.168.2.4  12426    192.168.1.10  12346   0.0.0.0   dtls     biz-internet  biz-internet  192.168.1.10  12346    up     0:00:00:01  0           -       -     -

0         vmanage  8     0       192.168.2.4  12426    192.168.1.1   12946   10.7.7.7  dtls     biz-internet  mpls          192.168.1.1   12946    up     0:00:01:59  0           -       -     No

Scenario 2. flap-reason:timeout

È possibile riprodurre questo scenario disabilitando un TLOC (in questo caso biz-internet) su VEDGE-1 chiudendo un'interfaccia nella base.

Stato BFD su VEDGE-2 prima di disabilitare un TLOC sul lato VEDGE-1:

VEDGE-2# show bfd sessions remote-color mpls system-ip 10.13.13.13 | t

SRC    DST                 SITE                              DETECT      TX

SRC IP   DST IP   PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR  STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

-------------------------------------------------------------------------------------------------------------------------------------

192.168.1.8  192.168.1.4  ipsec  12406  12366  10.13.13.13  13    mpls          mpls   up     7           1000      0:00:03:15  2

192.168.2.8  192.168.1.4  ipsec  12366  12366  10.13.13.13  13    biz-internet  mpls   up     7           1000      0:00:03:15  2

Accede a VEDGE-2 dopo aver riprodotto il problema:

local7.info: Mar 20 10:00:04 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 10:0:4 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.1.8 dst-ip:192.168.2.14 proto:ipsec src-port:12406 dst-port:12426 local-system-ip:10.15.15.15 local-color:"mpls" remote-system-ip:10.18.18.18 remote-color:"biz-internet" new-state:down deleted:false flap-reason:timeout

local7.info: Mar 20 10:00:05 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 10:0:4 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.2.8 dst-ip:192.168.4.40 proto:ipsec src-port:12386 dst-port:12366 local-system-ip:10.15.15.15 local-color:"biz-internet" remote-system-ip:10.19.19.19 remote-color:"biz-internet" new-state:down deleted:false flap-reason:timeout

VEDGE-2# show bfd sessions remote-color mpls system-ip 10.13.13.13 | t

SRC    DST                 SITE                              DETECT      TX

SRC IP   DST IP   PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR  STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

-------------------------------------------------------------------------------------------------------------------------------------

192.168.1.8  192.168.1.4  ipsec  12406  12366  10.13.13.13  13    mpls          mpls   up     7           1000      0:00:21:56  3

192.168.2.8  192.168.1.4  ipsec  12386  12366  10.13.13.13  13    biz-internet  mpls   down   7           1000      NA          1

Scenario 3. motivo dell'instabilità:na

È possibile riprodurre questo scenario eseguendo un'operazione di non chiusura sull'interfaccia sottostante dello scenario precedente.

local7.info: Mar 20 10:01:20 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 10:1:18 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.2.8 dst-ip:192.168.1.11 proto:ipsec src-port:12386 dst-port:12346 local-system-ip:10.15.15.15 local-color:"biz-internet" remote-system-ip:10.16.16.16 remote-color:"mpls" new-state:up deleted:false flap-reason:na

local7.info: Mar 20 10:01:20 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 10:1:18 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.1.8 dst-ip:192.168.2.11 proto:ipsec src-port:12406 dst-port:12426 local-system-ip:10.15.15.15 local-color:"mpls" remote-system-ip:10.16.16.16 remote-color:"biz-internet" new-state:up deleted:false flap-reason:na

VEDGE-2# show bfd sessions remote-color mpls system-ip 10.13.13.13 | t

SRC    DST                 SITE                              DETECT      TX

SRC IP   DST IP   PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR  STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

-------------------------------------------------------------------------------------------------------------------------------------

192.168.1.8  192.168.1.4  ipsec  12406  12366  10.13.13.13  13    mpls          mpls   up     7           1000      0:00:22:32  3

192.168.2.8  192.168.1.4  ipsec  12386  12366  10.13.13.13  13    biz-internet  mpls   up     7           1000      0:00:00:04  1

Scenario 4. motivo dell'instabilità:disattivazione remota

È possibile riprodurre questo scenario con il comando no control-connections su VEDGE-1 su un colore specifico (in questo caso mpls).

Log su VEDGE-1:

vpn 0

interface ge0/0

ip address 192.168.1.4/24

tunnel-interface

encapsulation ipsec

color mpls

no control-connections

VEDGE-1# show control connections | t

LOCAL    LOCAL                                                                                                                       CFG     V

PEER     SITE  DOMAIN  PRIVATE  PRIVATE  PUBLIC    PUBLIC  SYSTEM                                         PRIVATE   PRIVATE                     CONTROLLER  SYSTEM  ORG   BEHIND

INSTANCE  TYPE     ID    ID      IP       PORT     IP        PORT    IP       PROTOCOL  LOCAL COLOR   REMOTE COLOR  IP        PORT     STATE  UPTIME      GROUP ID    IP      NAME  PROXY

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

0         vsmart   8     1       192.168.2.4  12426    192.168.1.3   12946   10.8.8.8  dtls      biz-internet  default       192.168.1.3   12946    up     0:00:17:54  0           -       -     No

0         vbond    0     0       192.168.2.4  12426    192.168.1.10  12346   0.0.0.0   dtls      biz-internet  biz-internet  192.168.1.10  12346    up     0:00:02:37  0           -       -     -

0         vmanage  8     0       192.168.2.4  12426    192.168.1.1   12946   10.7.7.7  dtls      biz-internet  mpls          192.168.1.1   12946    up     0:00:22:44  0           -       -     No

Log su VEDGE-2:

local7.info: Mar 20 11:36:40 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 11:36:40 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.1.8 dst-ip:192.168.1.4 proto:ipsec src-port:12406 dst-port:12406 local-system-ip:10.15.15.15 local-color:"mpls" remote-system-ip:10.13.13.13 remote-color:"mpls" new-state:down deleted:false flap-reason:remote-down

local7.info: Mar 20 11:36:40 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 11:36:40 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.2.8 dst-ip:192.168.1.4 proto:ipsec src-port:12386 dst-port:12406 local-system-ip:10.15.15.15 local-color:"biz-internet" remote-system-ip:10.13.13.13 remote-color:"mpls" new-state:down deleted:false flap-reason:remote-down

local7.info: Mar 20 11:36:41 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 11:36:41 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.1.8 dst-ip:192.168.1.4 proto:ipsec src-port:12406 dst-port:12406 local-system-ip:10.15.15.15 local-color:"mpls" remote-system-ip:10.13.13.13 remote-color:"mpls" new-state:up deleted:false flap-reason:na

local7.info: Mar 20 11:36:41 VEDGE-2 FTMD[1119]: %Viptela-VEDGE-2-ftmd-6-INFO-1400002: Notification: 3/20/2020 11:36:41 bfd-state-change severity-level:major host-name:"VEDGE-2" system-ip:10.15.15.15 src-ip:192.168.2.8 dst-ip:192.168.1.4 proto:ipsec src-port:12386 dst-port:12406 local-system-ip:10.15.15.15 local-color:"biz-internet" remote-system-ip:10.13.13.13 remote-color:"mpls" new-state:up deleted:false flap-reason:na

VEDGE-2# show bfd sessions remote-color mpls system-ip 10.13.13.13 | t

SRC    DST                 SITE                              DETECT      TX

SRC IP   DST IP   PROTO  PORT   PORT   SYSTEM IP    ID    LOCAL COLOR   COLOR  STATE  MULTIPLIER  INTERVAL  UPTIME      TRANSITIONS

-------------------------------------------------------------------------------------------------------------------------------------

192.168.1.8  192.168.1.4  ipsec  12406  12406  10.13.13.13  13    mpls          mpls   up     7           1000      0:00:05:27  16

192.168.2.8  192.168.1.4  ipsec  12386  12406  10.13.13.13  13    biz-internet  mpls   up     7           1000      0:00:05:27  9

Informazioni correlate

- Risoluzione dei problemi di rilevamento inoltro bidirezionale e connessioni del piano dati

- Documentazione e supporto tecnico – Cisco Systems