某局点S7506E OSPF邻居建立失败处理经验案例

组网图如下：

S10510和S7506E-NP建立OSPF邻居失败。

1、现场在S7506E-NP上抓包发现S10510给S7506E-NP发送了OSPF Hello报文，但是S7506E-NP没有响应

2、进一步排查发现S10510 Ping S7506E-NP直连不通，通过PC Ping S10510 在S7506E-NP进行流量统计

<S7506E>dis qos policy int t1/3/0/28
Interface: Ten-GigabitEthernet1/3/0/28
  Direction: Inbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        0 (Packets)
        0 (pps)

Interface: Ten-GigabitEthernet1/3/0/28
  Direction: Outbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        0 (Packets)
        0 (pps)
              
<S7506E>dis qos policy int g1/2/0/1
Interface: GigabitEthernet1/2/0/1
  Direction: Inbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        4 (Packets)
        0 (pps)

Interface: GigabitEthernet1/2/0/1
  Direction: Outbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        0 (Packets)
        0 (pps)
              
故障时arp学习正常，S7506E-NP的连PC的口有报文进来，但是连S10510的口没有报文发出。
===============display arp all=============== 
  Type: S-Static   D-Dynamic   O-Openflow   R-Rule   M-Multiport  I-Invalid
IP address      MAC address    VLAN/VSI   Interface                Aging Type
10.0.11.17      0868-8d38-a653 --         RAGG700                  511   D   
10.10.10.12     00e0-4c68-0b73 --         GE1/2/0/1                1145  D   
10.10.20.2      7057-bf1d-8c01 --         XGE1/3/0/28              1006  D  

3、现场更换S7506E-NP和S10510的互联接口后，Ping测试正常，OSPF邻居建立正常。

<S7506E>display qos policy interface Ten-GigabitEthernet 1/3/0/32
Interface: Ten-GigabitEthernet1/3/0/32
  Direction: Inbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        0 (Packets)
        0 (pps)

Interface: Ten-GigabitEthernet1/3/0/32
  Direction: Outbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        4 (Packets)
        0 (pps)
              
<S7506E>display qos policy interface g1/2/0/1
Interface: GigabitEthernet1/2/0/1
  Direction: Inbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        4 (Packets)
        0 (pps)

Interface: GigabitEthernet1/2/0/1
  Direction: Outbound
  Policy: LT
   Classifier: LT
     Operator: AND
     Rule(s) :
      If-match acl 3000
     Behavior: LT
      Accounting enable:
        0 (Packets)
        0 (pps)

经确认，现场使用的LSQM1TGS16GPSA是新开发的单板，28号口被设置成代理口， 如果28号口设置成路由口，无法正常转发三层报文。后面会在手册中增加相关说明。

方法一：将28口修改为二层口使用。

方法二：使用此单板除28口以外的任意接口做三层口使用。