Vlan Translation And Aggregation Mode - ZyXEL Communications IES4005M User Manual

• An S tag with SVID and a C tag with PVID are added on the NNI side for untagged packets from
the UNI side.
• The C tag for UNI side, single-tagged case is not changed in both sides, and a S tag with SVID is
added.
• The IES only forwards traffic for VLANs configured on the UNI side.
• VLAN stacking tagging and trunk can co-exist with other VLAN modes except transparent VLAN.
Table 119 Stacking VLAN Tagging and Trunk CLI Examples
VLAN MODE NNI VLAN
Stacking VLAN S(SVID) +
C(PVID)
Tagging and Trunk
(PTM-untagged)
Stacking VLAN
S(SVID) +
C(PVID)
Tagging and Trunk
(ATM-untagged)
Stacking VLAN
S(SVID) +
C(VID a)
Tagging and Trunk
(PTM-tagged)
Stacking VLAN
S(SVID) +
C(VID a)
Tagging and Trunk
(ATM-tagged)

25.1.4 VLAN Translation and Aggregation Mode

VLAN translation changes the VLAN tag on traffic received from a DSL port to another VLAN ID for
the service provider's network. This makes it easier to deploy customer-specific VLANs because all
the CPE devices can use the same VLAN configuration. You only need to configure VLAN translation
on the IES to use unique VLAN IDs for each CPE device's traffic.
• This mode performs VLAN translation between the NNI and UNI sides.
• The NNI side is tagged with an S tag and UNI side is tagged with a C tag.
• Two or more different UNI VLAN IDs translated to a NNI VLAN ID is VLAN aggregation.
• 1:1 VLAN translation mapping is VLAN translation.
• Only VLANs joined on the UNI side will be forwarded.
• VLAN translation and aggregation can co-exist with other VLAN modes except transparent VLAN.
Table 120 VLAN Translation and Aggregation CLI Examples
NNI
VLAN MODE
VLAN
VLAN Translation
S(VID x)
(PTM)
VLAN Translation S(VID x)
(ATM)
VLAN Aggregation
S(VID y)
(PTM)
S(VID y)
VLAN Aggregation
S(VID y)
(ATM)
S(VID y)
IES4005M User's Guide
UNI
CLI EXAMPLES
VLAN
untag
interface dsl 2/1
vlan trunk uni-untag svlan 200 spbit 0 cvlan 100
cpbit 0
untag
interface dsl 2/1
vlan trunk atm-vc 0/33 uni-untag svlan 200 spbit 0
cvlan 100 cpbit 0
C(VID a)
interface dsl 2/1
vlan trunk uni-vlan 100 svlan 200
C(VID a)
interface dsl 2/1
vlan trunk atm-vc 0/33 uni-vlan 100 svlan 200
UNI
CLI EXAMPLES
VLAN
C(VID a)
interface dsl 2/1
vlan translation uni-vlan 100 svlan 1100
C(VID a)
interface dsl 2/1
vlan translation atm-vc 0/33 uni-vlan 100 svlan 1100
C(VID b)
interface dsl 2/1
vlan translation uni-vlan 101 svlan 1100
C(VID c)
vlan translation uni-vlan 102 svlan 1100
C(VID b)
interface dsl 2/1
vlan translation atm-vc 0/33 uni-vlan 101 svlan 1100
C(VID c)
vlan translation atm-vc 0/33 uni-vlan 102 svlan 1100
Chapter 25 VLAN
181