Chapter 25 VLAN
IES4005M User’s Guide
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25.1.5 Stacking VLAN Translation and Aggregation Mode
• Compared to VLAN translation and aggregation mode, this mode adds an outer tag.
• This mode performs VLAN translation between the NNI and UNI sides.
• The NNI side is tagged with double tags, S(SVID) + C(CVID), and the 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.
• The IES only forwards traffic for VLANs configured on the UNI side.
• Stacking VLAN translation and aggregation can co-exist with other VLAN modes except
transparent VLAN.
25.1.6 VLAN TLS Mode
• VLAN Transparent LAN Service (TLS) adds an outer tag regardless of whether the UNI side is
untagged or single tagged.
• VLAN TLS packets are not handled by any control protocol (DHCP, IGMP, …), so the UNI traffic is
tunneled into the TLS VLAN.
• VLAN TLS mode forwards all traffic of VLANs not configured as part of other modes.
• VLAN TLS can co-exist with other VLAN modes except transparent VLAN.
Table 121 Stacking VLAN Translation and Aggregation CLI Examples
VLAN MODE NNI VLAN
UNI
VLAN
CLI EXAMPLES
Stacking VLAN
Translation (PTM)
S(SVID) +
C(VID x)
C(VID a)
interface dsl 2/1
vlan translation uni-vlan 100 svlan 2100 cvlan 1100
Stacking VLAN
Translation (ATM)
S(SVID) +
C(VID x)
C(VID a)
interface dsl 2/1
vlan translation atm-vc 0/33 uni-vlan 100 svlan 2100
cvlan 1100
Stacking VLAN
Aggregation (PTM)
S(SVID) +
C(VID y)
S(SVID) +
C(VID y)
C(VID b)
C(VID c)
interface dsl 2/1
vlan translation uni-vlan 101 svlan 2100 cvlan 1100
vlan translation uni-vlan 102 svlan 2100 cvlan 1100
Stacking VLAN
Aggregation (ATM)
S(SVID) +
C(VID y)
S(SVID) +
C(VID y)
C(VID b)
C(VID c)
interface dsl 2/1
vlan translation atm-vc 0/33 uni-vlan 101 svlan 2100
cvlan 1100
vlan translation atm-vc 0/33 uni-vlan 102 svlan 2100
cvlan 1100
Table 122 VLAN TLS CLI examples
VLAN MODE NNI VLAN
UNI
VLAN
CLI EXAMPLES
VLAN TLS
(PTM)
S(TLSVID)
S(TLSVID) + C(VID a)
untag
C(VID a)
interface dsl 2/1
vlan tls svlan 1000 spbit 3
VLAN TLS
(ATM)
S(TLSVID)
S(TLSVID) + C(VID a)
untag
C(VID a)
interface dsl 2/1
vlan tls atm-vc 0/33 svlan 1000 spbit 3