AC LIFs of type untagged, single tagged, and double tagged are supported.
Layer 2 end points (leaf) support Layer 2 ACLs.
Layer 2 end points (leaf) do not support rate limiting.
QoS behavior is similar to that for a single VTEP gateway. Details are listed in the following tables for DiffServe tunneling uniform and pipe modes in an overlay network.
|
Traffic type |
VxLAN origination |
VxLAN tunnel termination |
|---|---|---|
|
VLAN cases (untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header. |
NA |
|
VLAN cases (tagged) |
Priority Code Point (PCP) is mapped to IP DCSP of VxLAN tunnel and TTL is set to 255. |
DSCP is remapped to PCP of L2 traffic. |
|
BD (raw, single tagged) |
PCP of VLAN is mapped to DSCP and TTL is set to 255. |
DCSP is remapped to PCP of VLAN. |
|
BD (raw, double tagged) |
PCP of outer VLAN is mapped to DSCP and TTL is set to 255. |
DCSP is remapped to PCP of both inner and outer VLAN. Original PCP inner VLAN is not retained. |
|
BD (raw, untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header |
NA |
|
BD (tagged, single tagged) |
PCP is mapped to DSCP and TTL is set to 255 |
DSCP is remapped to PCP of L2 traffic. |
|
BD (tagged, double tagged) |
Outer VLAN PCP is mapped to DSCP and TTL is 255 Inner VLAN header is carried with original PCP. |
DSCP is remapped to PCP of outer VLAN and Inner VLAN of L2 traffic. |
|
BD (tagged, untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header. Dummy VLAN is added: VLAN ID is BD ID and PCP is 0. |
NA |
|
Traffic type |
VxLAN origination |
VxLAN tunnel termination |
|---|---|---|
|
VLAN cases (untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header. |
NA |
|
VLAN cases (tagged) |
Priority Code Point (PCP) is mapped to IP DCSP of VxLAN tunnel and TTL is set to 255. |
DSCP is remapped to PCP of L2 traffic. |
|
BD (raw, single tagged) |
PCP of VLAN is mapped to DSCP and TTL is set to 255. |
DCSP is remapped to PCP of VLAN. |
|
BD (raw, double tagged) |
PCP of outer VLAN is mapped to DSCP and TTL is set to 255. |
DCSP is remapped to PCP of both inner and outer VLAN. Original PCP inner VLAN is not retained. |
|
BD (raw, untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header |
NA |
|
BD (tagged, single tagged) |
PCP is mapped to DSCP and TTL is set to 255 |
DSCP is remapped to PCP of L2 traffic. |
|
BD (tagged, double tagged) |
Outer VLAN PCP is mapped to DSCP and TTL is 255 Inner VLAN header is carried with original PCP. |
DSCP is remapped to PCP of outer VLAN and Inner VLAN of L2 traffic. |
|
BD (tagged, untagged) |
DSCP 0 and TTL 255 are sent on the tunnel header. Dummy VLAN is added: VLAN ID is BD ID and PCP is 0. |
NA |
Note
In QoS behavior for DiffServ tunneling pipe mode table - If the packet has IP Header, post-decap packet IP DSCP value is taken from the inner DSCP value of the incoming packet in the VxLAN tunnel termination traffic.MTU behavior is similar to that for a single VTEP gateway.
Inner packet tag behavior is similar to that for a single VTEP gateway.
The following table summarizes this behavior for VLANs and BDs.
| VLAN/BD Configuration | Inner packet tag behavior | Remarks |
|---|---|---|
|
VLAN |
Inner packet is always untagged. |
|
|
BD raw mode |
Inner packet is always untagged. |
This is RFC-compliant behavior. |
|
BD tagged mode |
Inner packet is always tagged. |
This mode can be used if a tag must always be sent in the inner packet. |