S12508-F Vlan mapping配置删除后，仍有vlan maping配置残留

用户终端---------olt（上行）----------（bagg14）S12510(bagg210)---------bas（下行）

网关在OLT上

Vlan mapping配置删除后，设备发出的报文仍被vlan maping 替换标签。

1、查看收集的诊断信息，发现设备上当前配置中无vlan mapping配置。

interface Bridge-Aggregation14

description EPON-FH-HYLJ-OLT-10.FTTX

port link-type hybrid

undo port hybrid vlan 1

port hybrid vlan 12 18 51 53 1461 to 1466 1646 to 1651 2730 3461 3805 3841 tagged

port hybrid vlan 3863 4000 tagged

link-aggregation mode dynamic

mac-address static 34bf-9074-4c4b vlan 12

2、设备上从BAGG  210口学到的mac 携带的外层vlan tag为正常的2730，报文从BAGG14口发出，在对端OLT上看到接收的报文，外层vlan tag 为1462，正是之前vlan mapping配置中要替换成的vlan tag，怀疑vlan mapping 配置残留。

 ===============display mac-address=============== 

MAC Address      VLAN ID    State            Port/Nickname            Aging

e8bd-d1fc-5eb6   2730           Learned        BAGG210                  Y

3、登录设备查看发现，设备底层上确实有vlan mapping 动作的残留，由于现网是在配置vlan mapping后添加了VXLAN配置，后续再删除的vlan mapping配置，怀疑和操作顺序有关，研发实验室按照相同的步骤操作，问题能够复现，系Vlan mapping 与service配置有冲突，在删除Aggregation14的vlan mapping 时，底层删除失败，导致有残留。

bcm s 2 c 0 diag/dbal/dbd/6

Printing all entries for ESEM:                                                                                                                                                                                                                                                                       

  Entry   1: 00000000 10aaa063   Payload=0x0000f000   

         ESEM key: VD: 1, VSI: 2730, CV_ID 99

                 ESEM payload: OUT_AC: 61440

interface Bridge-Aggregation14

description EPON-FH-HYLJ-OLT-10.FTTX

port link-type hybrid

undo port hybrid vlan 1

port hybrid vlan 12 18 51 53 1461 to 1466 1646 to 1651 2730 3461 3805 3841 tagged

port hybrid vlan 3863 4000 tagged

vlan mapping tunnel 1462 2789 translated-vlan 2730 99

link-aggregation mode dynamic

mac-address static 34bf-9074-4c4b vlan 12

#

service-instance 3                                                                                                                

  encapsulation s-vid 3461 c-vid 2400 to 3599                                                                                       

  xconnect vsi aaa 

Chassis00 slot02 2022/09/25 11:30:28:909490 [LINE:6757-TASK:vland-FUNC:drv_qinq_vlan_xlate_set_for_vmap]:ifIndex 483 vlan range check return 0x40010010, SOVID 1462, EOVID 0, SIVID 2789, EIVID 0

Chassis00 slot02 2022/09/25 11:30:28:909526 [LINE:6702-TASK:vland-FUNC:drv_qinq_vlanmapping_set]:ifIndex 483 vlan_xlate set return 0x40010010

Chassis00 slot02 2022/09/25 11:30:28:909554 [LINE:938-TASK:vland-FUNC:DRV_QINQ_SetTwo2TwoMapping]:End, return 0x40010010, ifIndex=483, uiOpType=2, OVID=1462, IVID=2789, NewOVID=2730, NewIVID=99, ifIndexPA=0  

经确认此问题与操作顺序有关，此问题可用以下两种解决方案解决

1.     将有冲突的service-instance 3删除，接着配置vlan mapping，随后再删除vlan mapping，最后将service-instance 3配回即可；

2.     当前配置下重启单板也可生效。