[bmwg] A question about combining models in draft-dcn-bmwg-containerized-infra-08
Bill Fenner <fenner@fenron.com> Wed, 23 March 2022 10:34 UTC
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From: Bill Fenner <fenner@fenron.com>
Date: Wed, 23 Mar 2022 11:33:44 +0100
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Subject: [bmwg] A question about combining models in draft-dcn-bmwg-containerized-infra-08
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Hi,
In section 4.5. Model Combination, we see a picture that uses a veth
connected to a vswitch for east/west traffic:
+-------------------------------------------------------+
| User Space |
| +--------------------+ +--------------------+ |
| | C-VNF | | C-VNF | |
| | +------+ +------+ | | +------+ +------+ | |
| +-| veth |--| veth |-+ +-| veth |--| veth |-+ |
| +---^--+ +---^--+ +--^---+ +---^--+ |
| | | | | |
| | | | | |
| | +---v--------+ +-------v----+ | |
| | | vhost-user | | vhost-user | | |
| | +--| / memif |--| / memif |--+ | |
| | | +------------+ +------------+ | | |
| | | vSwitch | | |
| | +----------------------------------+ | |
| | | |
--------|----------------------------------------|-------
Have you considered orchestrating the containers to eliminate the vswitch,
by creating a single veth pair with one end in each container:
+-------------------------------------------------------+
| User Space |
| +--------------------+ +--------------------+ |
| | C-VNF | | C-VNF | |
| | +------+ +------+ | | +------+ +------+ | |
| +-| veth |--| veth |-+ +-| veth |--| veth |-+ |
| +---^--+ +---^--+ +--^---+ +---^--+ |
| | | | | |
| | | | | |
| | ------------------- | |
| | | |
--------|----------------------------------------|-------
Is it useful to eliminate (and/or measure) the overhead of the vswitch in
this case?
Thanks,
Bill
- [bmwg] A question about combining models in draft… Bill Fenner
- Re: [bmwg] A question about combining models in d… Minh-Ngoc Tran
- Re: [bmwg] A question about combining models in d… Minh-Ngoc Tran