ONU SSDP报文处理异常

ONU下挂摄像头时业务异常

ONU产品接摄像头时，SSDP协议报文因TTL为1时，ONU处理时存在部分端口剥离标签失败的情况。

为保证ONU对于此类报文处理机制一致，需同时配置组播vlan和strip实现下行组播流剥tag和上行untag加组带vlan，在ONU接摄像头的场景里，作为必配的优化配置。

参考配置如下：

# 给uni 1口配置组播vlan127

[H3C-Onu4/0/24:20]uni 1 multicast vlan 127

# 同时配置组播vlan和strip实现下行组播流剥tag和上行untag加组带vlan

[H3C-Onu4/0/24:20]uni 1 multicast-strip-tag enable

若需批量配置，可配置ONU模板，在OLT口调用，调用后，如原先的接口有冲突配置，以后下发的配置为准。

#                                                                                                                                   

onu template 1                                                                                                                      

 uni 1 multicast vlan 1104                                                                                                          

 uni 1 multicast-strip-tag enable                                                                                                   

 uni 1 vlan-mode tag pvid 1104        

 uni 2 multicast vlan 1104                                                                                                          

 uni 2 multicast-strip-tag enable                                                                                                   

 uni 2 vlan-mode tag pvid 1104                                                                                                   

 port link-type trunk                                                                                                               

 undo port trunk permit vlan 1                                                                                                      

 port trunk permit vlan 1104                                                                                                        

#     

interface olt x/x/x                                                                                                                 

apply onu template 1