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"Etherchannel"
Отправлено Alexander , 17-Мрт-09 13:51 
Добрый день. Есть вопрос по etherchannel. Имею несколько каталистов 2950, 2960 которые подключены оптикой к 6509, хочу подключить их второй оптикой и объединить эти порты с помощью etherchannel. Вопрос собственно следующий, на 6509 я могу создать 256 port-channel интефейсов максимум, а на 2950, 2960 небольше 6, как мне подключить по etherchannel каталисты если их у меня больше 6?
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"Etherchannel"
Отправлено ДорогойДрук , 17-Мрт-09 14:37 
Вы ж каждую 29х0 циску будете соединять с 6509 через 1 эзерченнел?
В каком месте там больше 6 ?
"Etherchannel"
Отправлено Alexander , 17-Мрт-09 17:31 
>Вы ж каждую 29х0 циску будете соединять с 6509 через 1 эзерченнел?
>
>В каком месте там больше 6 ?

Я наверное не правильно сформулировал.. должен ли номер интерфейса port-channel на 2950, 2960 совпадать с номером port-channel на 6509.

я решил протестировать.. вроде работает

На 6509

interface Port-channel 123                                                      
switchport                                                                    
switchport access vlan 101                                                    
no ip address            

.....

interface GigabitEthernet2/30                                                  
switchport                                                                    
switchport access vlan 101                                                    
switchport trunk encapsulation dot1q                                          
switchport mode trunk                                                          
no ip address                                                                  
channel-group 123 mode desirable                                              
!                                                                              
interface GigabitEthernet2/31                                                  
switchport                                                                    
switchport access vlan 101                                                    
switchport trunk encapsulation dot1q                                          
switchport mode trunk                                                          
no ip address                                                                  
channel-group 123 mode desirable


На 2960

interface Port-channel 1                                                        
switchport mode trunk

.....


interface GigabitEthernet0/17                                                  
switchport mode trunk                                                          
channel-group 1 mode desirable                                                
!                                                                              
interface GigabitEthernet0/18                                                  
switchport mode trunk                                                          
channel-group 1 mode desirable


"Etherchannel"
Отправлено Аноним , 17-Мрт-09 17:35 
Не должен конечно :)
"Etherchannel"
Отправлено Alexander , 17-Мрт-09 17:38 
вот что выдает на 2960

I3-BC3-CSW1#sh etherchannel summary                                            
Flags:  D - down        P - in port-channel                                    
        I - stand-alone s - suspended                                          
        H - Hot-standby (LACP only)                                            
        R - Layer3      S - Layer2                                              
        u - unsuitable for bundling                                            
        U - in use      f - failed to allocate aggregator                      
        d - default port                                                        
                                                                                
Number of channel-groups in use: 1                                              
Number of aggregators:           1                                              
                                                                                
Group  Port-channel  Protocol    Ports                                          
------+-------------+-----------+-----------------------------------------------
1      Po1(SU)         PAgP      Gi0/17(P)   Gi0/18(Pd)                        


на 6509

C6509-1#sh etherchannel summary                                                
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                                            
Number of channel-groups in use: 1                                              
Number of aggregators:           1                                              
                                                                                
Group  Port-channel  Protocol    Ports                                          
------+-------------+-----------+-----------------------------------------------
123    Po123(SU)       PAgP      Gi2/30(P)  Gi2/31(P)                          


Все ли тут хорошо?

"Etherchannel"
Отправлено sh_ , 17-Мрт-09 17:48 
Сравните настройки на портах в EtherChannel. Они должны быть полностью одинаковыми.