Update dhcpv6 options and performance #1109
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| Restart dhcp_relay after updating ipv6 helper information. | ||
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| **only DHCP_RELAY table needs to be updated for the latest versions. |
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Can you please specify what do you mean by latest version?
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| Usage: | ||
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| redis-cli -n 4 hset DHCP_RELAY|<vlan> dhcpv6_option|rfc6939_support <true/false> |
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Using redis-cli is not a standard way of configuring SONiC. It should be done through config load of json when click CLI is not available. Please update the documentation to have all configuration examples using json format and mention it can be used with config load command.
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Please add a json example of the config to be put it.
Eg:
{
"DHCP_RELAY" :{
"Vlan100" : {
"dhcpv6_servers" : ["fc02:2000::2"]
}
}
}
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This comment is still applicable
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| Usage: | ||
| ``` | ||
| redis-cli -n 4 hset DHCP_RELAY|<vlan> dhcpv6_option|rfc6939_support <true/false> |
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Please add a json example of the config to be put it.
Eg:
{
"DHCP_RELAY" :{
"Vlan100" : {
"dhcpv6_servers" : ["fc02:2000::2"]
}
}
}
| # Config Update | ||
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| We have shifted from VLAN table to DHCP_RELAY table to store ipv6 helper information. | ||
| Only DHCP_RELAY table needs to be updated for the versions containing PR https://github.com/sonic-net/sonic-buildimage/pull/10654, or version 20201231.75 and 20181130.98 and above |
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Can you also include this PR sonic-net/sonic-buildimage#13006 and those versions might not work completely as suggested in the description of the PR
| type bool; | ||
| } | ||
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| leaf dhcpv6_option|interface_id { |
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I don't see this in the yang model. Is this a future change? https://github.com/sonic-net/sonic-buildimage/blob/master/src/sonic-yang-models/yang-models/sonic-dhcpv6-relay.yang
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Yes will be a future change
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| Usage: | ||
| ``` | ||
| redis-cli -n 4 hset DHCP_RELAY|<vlan> dhcpv6_option|rfc6939_support <true/false> |
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| Typical number of vlans used with dhcp6relay is around 2 vlans. Performance degration and high CPU utilization is seen on devices with more than 25 vlans configured, especially devices with weaker CPU's. | ||
| Tests have shown functionality and performance degradation when there are more than 20 vlans configured on weaker CPU's. | ||
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| • 25 Vlans - Passed on SPC1. |
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Please remove Vendor specific information like SPC1.
Add interface-id option, update yang model, config update
Update performance with typical vlan usage