目錄

簡介

必要條件

需求

採用元件

案例

拓撲

組態

邊緣裝置配置

vSmart OMP配置

vSmart策略

問題

解決方案

相關資訊

簡介

本文說明如何對重疊管理協定(OMP)路由進行故障排除，並說明vSmart路由選擇操作的順序。

必要條件

需求

思科建議您瞭解思科軟體定義廣域網(SDWAN)解決方案。

採用元件

本檔案所述內容不限於硬體平台。  本文描述在使用20.6.3版vSmart和17.6.3版cEdge路由器的實驗室中發現的問題，但在其他軟體版本中也可看到問題。

本文中的資訊是根據特定實驗室環境內的裝置所建立。文中使用到的所有裝置皆從已清除（預設）的組態來啟動。如果您的網路運作中，請確保您瞭解任何指令可能造成的影響。

案例

本文檔中描述的場景顯示，兩個站點向vSmart通告預設路由。vSmart會選擇最佳路徑，並將其通告給邊緣裝置。在這種情況下，選擇AMER_DC是由於控制策略阻止了遠端邊緣（雲邊緣）的EMEAR_DC預設路由。vSmart僅在具有AMER_DC邊緣的企業Internet上擁有控制連線。  當AMER_DC企業Internet發生中斷時，所有控制連線都將丟失，vSmart會將從AMER_DC獲知的所有路由置於「過時」狀態。  這會導致vSmart不將這些路徑視為最佳路徑。

此時，vSmart通常會選擇EMEA_DC作為最佳路徑並通告它。  但是，控制策略會阻止來自EMEA_DC的預設路由，並且此策略應用於雲邊緣。  如果沒有send-backup-paths的OMP配置，vSmart不會傳送過時路由，因為這些路由是控制策略不拒絕的唯一預設路由。  還需要在vSmart OMP配置中增加send-path-limit，以便傳送超過非陳舊路由的數量。

拓撲

為了更好地瞭解問題，以下是一個描述設定的簡單拓撲圖：

組態

邊緣裝置配置

配置的簡短摘要：

- 站點EMEA_DC路由器具有傳輸定位器(TLOC)顏色biz-internet、private1和private2。

- 已在private2 TLOC上配置了max-control-connections 0。

- 站點AMER_DC路由器具有TLOC顏色biz-internet、private1和private2。

- 已在private1和private2 TLOC上配置最大控制連線0。

- 雲路由器具有biz-internet、private1和private2的TLOC顏色。

- 已在private2 TLOC上配置了max-control-connections 0。

- 所有路由器都具有預設OMP配置。

- 所有EMEA_DC和AMER_DC路由器都會通告預設路由。

- 有兩個裝置（172.16.4.1和172.16.5.1）屬於重疊部分，但是與此問題無關。  因此，拓撲或表中未提到它們。

主機名

site-id

system-ip

EMEA_DC1

2016

10.4.4.1

EMEA_DC2

2016

10.4.4.6

AMER_DC1

2034

10.5.5.3

AMER_DC2

2034

10.5.5.4

雲端

202

10.10.20.2

vSmart

10

10.3.3.1

vSmart OMP配置

vSmart使用預設OMP配置進行配置。

vsmart1# show running-config omp

omp

no shutdown

graceful-restart

!

vsmart1# show running-config omp | details

omp

no shutdown

send-path-limit   4

no send-backup-paths

no discard-rejected

graceful-restart

timers

holdtime               60

advertisement-interval 1

graceful-restart-timer 43200

eor-timer              300

exit

!

提示：要檢視完整配置（預設和非預設），請包括 | show running-config命令末尾的詳細信息。

vSmart策略

vSmart配置了集中控制策略。  該控制策略應用於雲站點，並為來自EMEA_DC站點的預設路由配置操作拒絕。

以下是原則組態：

policy

control-policy Rej_Remote_Default

sequence 1

match route

site-list EMEA_DC

prefix-list default_route

!

action reject

!

!

default-action accept

!

lists

prefix-list default_route

ip-prefix 0.0.0.0/0

!

site-list Cloud

site-id 202

!

site-list EMEA_DC

site-id 2016

!

!

!

apply-policy

site-list Cloud

control-policy Rej_Remote_Default out

!

!

問題

在正常操作條件下，雲站點將接收來自AMER_DC站點的預設路由。  這可使用show sdwan omp routes vpn 1 0.0.0.0/0指令驗證。如果您的服務vpn不是vpn 1，請將編號1替換為服務vpn編號。

Cloud#show sdwan omp routes vpn 1 0.0.0.0/0

Generating output, this might take time, please wait ...

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

PATH                      PSEUDO

FROM PEER        ID     LABEL    STATUS    KEY     TLOC IP          COLOR            ENCAP  PREFERENCE

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

10.3.3.1         81     1003     C,I,R     1       10.5.5.3         biz-internet     ipsec  -

10.3.3.1         97     1003     C,I,R     1       10.5.5.3         private1         ipsec  -

10.3.3.1         98     1003     C,I,R     1       10.5.5.3         private2         ipsec  -

10.3.3.1         99     1003     C,I,R     1       10.5.5.4         biz-internet     ipsec  -

vSmart在所有4個DC路由器的3個TLOC上收到預設路由。vSmart共有12條路由。

vsmart1# show omp routes vpn 1 0.0.0.0/0 received | tab

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

PATH                      ATTRIBUTE

FROM PEER        ID     LABEL    STATUS    TYPE       TLOC IP          COLOR            ENCAP  PREFERENCE

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

10.4.4.1         68     1002     C,R       installed  10.4.4.1         biz-internet     ipsec  -

10.4.4.1         81     1002     C,R       installed  10.4.4.1         private1         ipsec  -

10.4.4.1         82     1002     C,R       installed  10.4.4.1         private2         ipsec  -

10.4.4.6         68     1003     C,R       installed  10.4.4.6         biz-internet     ipsec  -

10.4.4.6         81     1003     C,R       installed  10.4.4.6         private1         ipsec  -

10.4.4.6         82     1003     C,R       installed  10.4.4.6         private2         ipsec  -

10.5.5.3         68     1003     C,R       installed  10.5.5.3         biz-internet     ipsec  -

10.5.5.3         81     1003     C,R       installed  10.5.5.3         private1         ipsec  -

10.5.5.3         82     1003     C,R       installed  10.5.5.3         private2         ipsec  -

10.5.5.4         68     1003     C,R       installed  10.5.5.4         biz-internet     ipsec  -

10.5.5.4         81     1003     C,R       installed  10.5.5.4         private1         ipsec  -

10.5.5.4         82     1003     C,R       installed  10.5.5.4         private2         ipsec  -

在AMER_DC站點的biz-internet電路中斷時，雲邊緣裝置不再接收預設路由。  您預計它會丟失biz-internet路由，但會保留private1和private2路由。  可以使用show sdwan omp routes vpn 1 0.0.0.0/0 和show sdwan omp routes vpn 1命令驗證這一點。

註：如果裝置未收到字首，則show sdwan omp routes命令會顯示CLI命令錯誤，如下所示。

Cloud#show sdwan omp routes vpn 1 0.0.0.0/0

Generating output, this might take time, please wait ...

show omp best-match-route family ipv4 entries vpn 1 0.0.0.0    | tab

show omp best-match-route family ipv4 entries vpn

syntax error: unknown argument

Error executing command: CLI command error -

Cloud#show sdwan omp routes

Generating output, this might take time, please wait ...

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

PATH                      ATTRIBUTE

VPN    PREFIX              FROM PEER        ID     LABEL    STATUS    TYPE       TLOC IP          COLOR            ENCAP  PREFERENCE

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

1      10.5.100.0/24       10.3.3.1         72     1003     Inv,U     installed  10.5.5.3         biz-internet     ipsec  -

10.3.3.1         73     1003     C,I,R     installed  10.5.5.3         private1         ipsec  -

10.3.3.1         74     1003     C,I,R     installed  10.5.5.3         private2         ipsec  -

使用AMER_DC邊緣裝置時，vSmart進入平穩重啟狀態，可從show omp peers命令中看到。

vsmart1# show omp peers

R -> routes received

I -> routes installed

S -> routes sent

DOMAIN    OVERLAY   SITE

PEER             TYPE    ID        ID        ID        STATE    UPTIME           R/I/S

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

172.16.4.1       vedge   1         1         101       up       0:13:13:02       9/0/22

172.16.5.1       vedge   1         1         104       up       0:13:13:03       3/0/28

10.4.4.1         vedge   1         1         2016      up       0:01:45:10       6/0/27

10.4.4.6         vedge   1         1         2016      up       0:02:13:27       6/0/27

10.5.5.3 vedge 1 1 2034 down-in-gr 6/0/0 10.5.5.4 vedge 1 1 2034 down-in-gr 6/0/0

10.10.20.2       vedge   1         1         202       up       0:12:40:09       3/0/24

vSmart繼續接收所有12條路由，每個DC裝置3條。這可以通過收到的show omp routes vpn 1 0.0.0.0/0進行驗證 | tab指令。  來自AMER_DC站點的路由顯示為陳舊狀態。

提示：若要以使用者友好的表格格式檢視輸出，請包括 | 選項卡。  如果沒有它，命令的輸出將採用不同的格式。

vsmart1# show omp routes vpn 1 0.0.0.0/0 received | tab

Code:

C -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R -> resolved

S -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

PATH                      ATTRIBUTE

FROM PEER        ID     LABEL    STATUS    TYPE       TLOC IP          COLOR            ENCAP  PREFERENCE

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

10.4.4.1         68     1002     C,R       installed  10.4.4.1         biz-internet     ipsec  -

10.4.4.1         81     1002     C,R       installed  10.4.4.1         private1         ipsec  -

10.4.4.1         82     1002     C,R       installed  10.4.4.1         private2         ipsec  -

10.4.4.6         68     1003     C,R       installed  10.4.4.6         biz-internet     ipsec  -

10.4.4.6         81     1003     C,R       installed  10.4.4.6         private1         ipsec  -

10.4.4.6         82     1003     C,R       installed  10.4.4.6         private2         ipsec  -

10.5.5.3         68     1003     R,S       installed  10.5.5.3         biz-internet     ipsec  -

10.5.5.3         81     1003     R,S       installed  10.5.5.3         private1         ipsec  -

10.5.5.3         82     1003     R,S       installed  10.5.5.3         private2         ipsec  -

10.5.5.4         68     1003     R,S       installed  10.5.5.4         biz-internet     ipsec  -

10.5.5.4         81     1003     R,S       installed  10.5.5.4         private1         ipsec  -

10.5.5.4         82     1003     R,S       installed  10.5.5.4         private2         ipsec  -

為了驗證vSmart傳送到邊緣裝置的路由，您可以運行命令 show omp routes vpn 1 0.0.0.0/0 advertised detail | tab.

從輸出中需要注意幾點：

1. 僅將來自EMEA_DC邊緣路由器的預設路由傳送到其他邊緣裝置。

2. 不會向雲邊緣路由器通告預設路由。

vsmart1# show omp routes vpn 1 0.0.0.0/0 advertised detail | tab

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

ULTIMATE

PATH                                                                                                                                      UNKNOWN                                                                    TLOC

TO PEER          ADVERTISE ID     ID    LABEL    TLOC IP          COLOR            ENCAP  PROTOCOL         METRIC           DOMAIN ID   SITE ID     PREFERENCE  TAG         ATTRIBUTE LEN    ORIGINATOR       TLOC IP          COLOR            ENCAP  ACTION   OVERLAY ID  AS PATH     COMMUNITY

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

172.16.4.1       67               50    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

78               56    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               57    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               61    1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

172.16.5.1       67               56    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

78               62    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               63    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               67    1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

10.4.4.1         67               53    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

68               54    1003     10.4.4.6         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

69               55    1003     10.4.4.6         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

10.4.4.6         78               97    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               98    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               102   1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

解決方案

這是給定此環境中的當前配置的預期行為。  發生這種情況的原因是vSmart上的OMP路由選擇的操作順序。

1. vSmart會選擇要傳送到裝置的最佳路由。  預設情況下，vSmart的send-path-limit為4，因此會選擇4個最佳路由。當其他路由可用時，不會選擇陳舊的路由。對於雲邊緣路由，將選擇來自EMEA_DC的預設路由作為最佳路由。

2. 將應用出站策略，該策略將拒絕來自EMEA_DC路由的路由。  因此，不會將預設路由傳送到雲邊緣路由器。

要更正此問題，需要修改vSmart OMP配置以傳送超過4個路由和超過最佳路由。

- omp send-backup-paths配置僅用於vSmarts，並且OMP會向邊緣路由器通告備份路由。 預設情況下，OMP僅通告最佳路由。如果配置send-backup-paths命令，OMP除了通告最佳路由之外，還會通告第一個非最佳路由。

- omp send-path-limit配置確定邊緣路由器通告給vSmart或vSmart通告給邊緣路由器的等價路由的最大數量。  預設值為 4。對於大多數SDWAN網路，範圍是1到16。如果vSmart在20.8.x或更高版本中處於分層SD-WAN架構，則範圍是1到32。對於此使用情形，該值需要大於vSmart從EMEA_DC站點擁有的非陳舊路由數，即6。

vsmart1# show running-config omp

omp

no shutdown

send-path-limit 16

send-backup-paths

graceful-restart

!

為了驗證vSmart OMP配置更改是否產生了預期的效果，可以運行命令 show omp routes vpn 1 0.0.0.0/0 advertised detail | tab.

從輸出中需要注意幾點：

1. EMEA_DC和AMER_DC預設路由器都會通告給網路中的某些邊緣路由器。所有12個預設路由上都會通告某些路由器。

2. 從AMER_DC站點到雲邊緣路由器的預設路由將被通告。

vsmart1# show omp routes vpn 1 0.0.0.0/0 advertised detail | tab

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

ULTIMATE

PATH                                                                                                                                      UNKNOWN                                                                    TLOC

TO PEER          ADVERTISE ID     ID    LABEL    TLOC IP          COLOR            ENCAP  PROTOCOL         METRIC           DOMAIN ID   SITE ID     PREFERENCE  TAG         ATTRIBUTE LEN    ORIGINATOR       TLOC IP          COLOR            ENCAP  ACTION   OVERLAY ID  AS PATH     COMMUNITY

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

172.16.4.1       22               64    1003     10.5.5.3         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

23               65    1003     10.5.5.3         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

24               66    1003     10.5.5.3         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

28               67    1003     10.5.5.4         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

29               68    1003     10.5.5.4         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

30               69    1003     10.5.5.4         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

67               50    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

68               62    1003     10.4.4.6         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

69               63    1003     10.4.4.6         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

78               56    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               57    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               61    1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

172.16.5.1       22               70    1003     10.5.5.3         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

23               71    1003     10.5.5.3         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

24               72    1003     10.5.5.3         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

28               73    1003     10.5.5.4         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

29               74    1003     10.5.5.4         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

30               75    1003     10.5.5.4         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

67               56    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

68               68    1003     10.4.4.6         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

69               69    1003     10.4.4.6         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

78               62    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               63    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               67    1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

10.4.4.1         22               57    1003     10.5.5.3         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

23               58    1003     10.5.5.3         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

24               59    1003     10.5.5.3         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

28               60    1003     10.5.5.4         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

29               61    1003     10.5.5.4         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

30               62    1003     10.5.5.4         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

67               53    1003     10.4.4.6         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

68               54    1003     10.4.4.6         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

69               55    1003     10.4.4.6         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.6         -                -                -      -        1           -           -

10.4.4.6         22               103   1003     10.5.5.3         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

23               104   1003     10.5.5.3         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

24               105   1003     10.5.5.3         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.3         -                -                -      -        1           -           -

28               106   1003     10.5.5.4         biz-internet     ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

29               107   1003     10.5.5.4         private1         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

30               108   1003     10.5.5.4         private2         ipsec  static           0                -           2034        -           -           -                10.5.5.4         -                -                -      -        1           -           -

78               97    1002     10.4.4.1         biz-internet     ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

79               98    1002     10.4.4.1         private2         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

81               102   1002     10.4.4.1         private1         ipsec  static           0                -           2016        -           -           -                10.4.4.1         -                -                -      -        1           -           -

10.10.20.2 22 112 1003 10.5.5.3 biz-internet ipsec static 0 - 2034 - - - 10.5.5.3 - - - - 1 - - 23 113 1003 10.5.5.3 private1 ipsec static 0 - 2034 - - - 10.5.5.3 - - - - 1 - - 24 114 1003 10.5.5.3 private2 ipsec static 0 - 2034 - - - 10.5.5.3 - - - - 1 - - 28 115 1003 10.5.5.4 biz-internet ipsec static 0 - 2034 - - - 10.5.5.4 - - - - 1 - - 29 116 1003 10.5.5.4 private1 ipsec static 0 - 2034 - - - 10.5.5.4 - - - - 1 - - 30 117 1003 10.5.5.4 private2 ipsec static 0 - 2034 - - - 10.5.5.4 - - - - 1 - -

雲邊緣路由器從AMER_DC站點接收預設路由。  這可使用show sdwan omp routes vpn 1 0.0.0.0/0命令驗證。biz-internet路由處於Inv、U狀態，因為電路在AMER_DC站點遇到停機。

Cloud#show sdwan omp routes vpn 1 0.0.0.0/0

Generating output, this might take time, please wait ...

Code:

C   -> chosen

I   -> installed

Red -> redistributed

Rej -> rejected

L   -> looped

R   -> resolved

S   -> stale

Ext -> extranet

Inv -> invalid

Stg -> staged

IA  -> On-demand inactive

U   -> TLOC unresolved

PATH                      PSEUDO

FROM PEER        ID     LABEL    STATUS    KEY     TLOC IP          COLOR            ENCAP  PREFERENCE

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

10.3.3.1         112    1003     Inv,U     1       10.5.5.3         biz-internet     ipsec  -

10.3.3.1         113    1003     C,I,R     1       10.5.5.3         private1         ipsec  -

10.3.3.1         114    1003     C,I,R     1       10.5.5.3         private2         ipsec  -

10.3.3.1         115    1003     Inv,U     1       10.5.5.4         biz-internet     ipsec  -

10.3.3.1         116    1003     C,I,R     1       10.5.5.4         private1         ipsec  -

10.3.3.1         117    1003     C,I,R     1       10.5.5.4         private2         ipsec  -

路由表中只安裝了private1和private2，因為它們處於C、I、R狀態。  根據show ip route vrf 1 0.0.0.0命令的輸出將路由安裝到表中。

註：在show sdwan omp命令中，vpn關鍵字用於檢視服務端路由器。  在show ip route命令中，vrf關鍵字用於檢視服務端路由器。

Cloud# show ip route vrf 1 0.0.0.0

Routing Table: 1

Routing entry for 0.0.0.0/0, supernet

Known via "omp", distance 251, metric 0, candidate default path, type omp

Last update from 10.5.5.4 on Sdwan-system-intf, 00:17:07 ago

Routing Descriptor Blocks:

10.5.5.4 (default), from 10.5.5.4, 00:17:07 ago, via Sdwan-system-intf

Route metric is 0, traffic share count is 1

* 10.5.5.3 (default), from 10.5.5.3, 00:17:07 ago, via Sdwan-system-intf

Route metric is 0, traffic share count is 1

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