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7600 etherchannel 6708+6704

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UglyAdmin   

UglyAdmin
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Приветствую, коллеги.

 

Потребовалось тут собрать в один etherchannel порты с разнотипных плат - 3 порта на 6708 и 1 порт на 6704. DFC на них одинаковый.

Прямо в лоб не собралось, т.к. у портов разный qos.

После " no mls qos channel-consistency" поднялось, но часть трафика просто теряется. Например, связность между некоторыми парами IP по разные стороны этого линка просто отсутствует.

На портах и на Port-channel ни ошибок ни дропов не видно.

 

Есть у кого опыт победить это? Может, тонкие настройки etherchannel помогут?

  

#sh etherchannel 20 sum
Flags:  D - down        P - bundled in port-channel
        I - stand-alone s - suspended
        H - Hot-standby (LACP only)
        R - Layer3      S - Layer2
        U - in use      f - failed to allocate aggregator

        M - not in use, minimum links not met
        u - unsuitable for bundling
        w - waiting to be aggregated
        d - default port


Number of channel-groups in use: 4
Number of aggregators:           4

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
20     Po20(SU)        LACP      Te1/5(P)    Te2/5(P)    Te3/3(P)    
                                 Te4/5(P)    

Last applied Hash Distribution Algorithm: Fixed

PCORE1#sh etherchannel 20 detail
Group state = L2 
Ports: 4   Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol:   LACP
Minimum Links: 0
		Ports in the group:
		-------------------
Port: Te1/5
------------

Port state    = Up Mstr In-Bndl 
Channel group = 20          Mode = Active           Gcchange = -
Port-channel  = Po20        GC   =   -              Pseudo port-channel = Po20
Port index    = 0           Load = 0x11             Protocol =   LACP
Mode = LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.

Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Te1/5     SA      bndl      32768         0x14      0x14    0x106       0x3D  

Partner's information:

          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port           Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te1/5            SA    bndl      32768         0x0       0x141    0x2         0x3D  

Age of the port in the current state: 0d:20h:08m:27s

Port: Te2/5
------------

Port state    = Up Mstr In-Bndl 
Channel group = 20          Mode = Active           Gcchange = -
Port-channel  = Po20        GC   =   -              Pseudo port-channel = Po20
Port index    = 1           Load = 0x22             Protocol =   LACP
Mode = LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.

Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Te2/5     SA      bndl      32768         0x14      0x14    0x206       0x3D  

Partner's information:

          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port           Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te2/5            SA    bndl      32768         0x0       0x141    0x1         0x3D  

Age of the port in the current state: 0d:20h:08m:30s

Port: Te3/3
------------

Port state    = Up Mstr In-Bndl 
Channel group = 20          Mode = Active           Gcchange = -
Port-channel  = Po20        GC   =   -              Pseudo port-channel = Po20
Port index    = 3           Load = 0x44             Protocol =   LACP
Mode = LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.
          
Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Te3/3     SA      bndl      32768         0x14      0x14    0x304       0x3D  

Partner's information:

          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port           Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te3/3            SA    bndl      32768         0x0       0x141    0x4         0x3D  

Age of the port in the current state: 0d:00h:01m:33s

Port: Te4/5
------------

Port state    = Up Mstr In-Bndl 
Channel group = 20          Mode = Active           Gcchange = -
Port-channel  = Po20        GC   =   -              Pseudo port-channel = Po20
Port index    = 2           Load = 0x88             Protocol =   LACP
Mode = LACP
          
Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.

Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Te4/5     SA      bndl      32768         0x14      0x14    0x406       0x3D  

Partner's information:

          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port           Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te4/5            SA    bndl      32768         0x0       0x141    0x3         0x3D  

Age of the port in the current state: 0d:20h:08m:29s

		Port-channels in the group: 
		----------------------

Port-channel: Po20    (Primary Aggregator)

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

Age of the Port-channel   = 385d:17h:52m:56s
Logical slot/port   = 14/3          Number of ports = 4
HotStandBy port = null 
Port state          = Port-channel Ag-Inuse 
Protocol            =   LACP
Fast-switchover     = disabled
Direct Load Swap    = disabled

Ports in the Port-channel: 

Index   Load    Port      EC state        No of bits
------+------+--------+------------------+-----------
  0     11     Te1/5      Active             2
  1     22     Te2/5      Active             2
  3     44     Te3/3      Active             2
  2     88     Te4/5      Active             2

Time since last port bundled:    0d:00h:01m:34s    Te3/3
Time since last port Un-bundled: 0d:17h:02m:28s    Te3/3

Last applied Hash Distribution Algorithm: Fixed
Channel-group Iedge Counts: 
--------------------------: 
Access ref count       : 0
Iedge session count    : 0

 

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Atlant   

Atlant
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Должно работать.

Ребутнуть не пробовали?

Что показывает диагностика с поочередным выключением портов? Какой вносит проблему?

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UglyAdmin   

UglyAdmin
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Изначально собрали на трёх портах 6708 (это три одинаковых платы) - работает нормально, но пропускной недостаточно, да и распределяет на три порта неровно.

Добавил порт на 6704 - начались проблемы, причём диагностируемые нетривиально. Выключил этот порт - всё нормально.

Другие порты выключать не пробовал.

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fork   

fork
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etherchannel  "боевой" ? по днагрузкой?

какое оборудование на ответной стороне?

если из Ро выкинуть все порты 6708 карт и оставить 6704 ?

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UglyAdmin   

UglyAdmin
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Провел наконец эксперимент.

Включил порт на 6704, поочередно отключил все остальные. Трафик всё время падал, и когда остался один порт 6704 (Te3/3) упал до 300мБит (с 5Г) по показаниям SNMP.

 

Ошибок, дропов так же нет с обеих сторон.

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UglyAdmin   

UglyAdmin
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Похоже, сам дурак: DFC поставил, а xCEF не апгрейдил. Через плату трафик просто не шел.

Вернул назад CFC, собрал etherchannel - пока ошибок не вижу.

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