Adding Member Interfaces to an Eth-Trunk
Context
Before adding member interfaces to an Eth-Trunk, see Licensing Requirements and Limitations for Link Aggregation for information about configuration notes.
Link Aggregation Mode |
Advantage |
Precautions |
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|---|---|---|---|---|
Intra-card |
Higher bandwidth, higher reliability, and load balancing, which are the same as those of link aggregation |
When the card is faulty, traffic on the Eth-Trunk interface is interrupted. |
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Inter-card |
Between cards with Eth-Trunk specification extension |
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The cards on which Eth-Trunk member interfaces are located must use the same hash mode. |
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Between cards with and without Eth-Trunk specification extension |
The hash mode must be set to normal for cards with Eth-Trunk specification extension. |
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Between cards without Eth-Trunk specification extension |
N/A |
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You can run the display eth-trunk load-balance hash-mode command to check the hash mode of a card.
On a card with Eth-Trunk specification extension, if the index of the Eth-Trunk is greater than 127 or the Eth-Trunk has more than eight member interfaces, the hash mode cannot be changed to normal. You can run the display trunk index-map command to check the index of an Eth-Trunk.
Cards with Eth-Trunk specification extension refer to the following cards:
S12700: SC series, EE series, X series, and ET1D2X48SEC0 cards
You can add member interfaces to an Eth-Trunk in the Eth-Trunk interface view or member interface view.
Procedure
- Add member interfaces to an Eth-Trunk in the Eth-Trunk interface view.
- (Optional) Run:
eth-trunk load-balance hash-mode { advanced | normal } slot slot-id
A hash mode of the card is configured so that interfaces on the card can form an Eth-Trunk with interfaces on another card.
Only the card with Eth-Trunk specification extension supports the hash mode configuration.
- Run:
trunkport interface-type { interface-number1 [ to interface-number2 ] } &<1-8> [ mode { active | passive } ]
A member interface is added to the Eth-Trunk.
When you add member interfaces to an Eth-Trunk in a batch, if one interface cannot be added to the Eth-Trunk, any subsequent interfaces in the batch will also not be added to the Eth-Trunk.
- (Optional) Run:
- Add member interfaces to an Eth-Trunk in the member interface view.
When adding an interface to an Eth-Trunk, pay attention to the following points:
- An Ethernet interface can be added to only one Eth-Trunk. To add an Ethernet interface to another Eth-Trunk, delete it from the original one first.
- After interfaces are added to an Eth-Trunk, the Eth-Trunk learns MAC addresses and ARP entries but member interfaces do not.
- Before deleting an Eth-Trunk, first delete the member interfaces from the Eth-Trunk.