Chapter 1: Configuration
Configuring IP and Ethernet interfaces
Page
1-58
Management VID
(Range 1-4094)
Enter the VID that the BHS must share with the BHM. The range of values is 1
to 4095. The default value is 1.
Default Port VID
(Range 1-4094)
This is the VID that is used for untagged frames and corresponds to the Q-
Tag for 802.1Q frames (if VLAN Port Type is Q), or the C-Tag for 802.1ad
frames (if the VLAN Port Type is Q-in- Q).
QinQ Ether Type
Modules can be configured with 802.1ad Q-in-Q DVLAN (Double-VLAN)
tagging which is a way for an operator to put an 802.1Q VLAN inside of an
802.1ad VLAN. A nested VLAN, which is the original 802.1Q tag and a new
second 802.1ad tag, allows for bridging of VLAN traffic across a network and
segregates the broadcast domains of 802.1Q VLANs. Q-in-Q can be used
with PPPoE and/or NAT.
The 802.1ad standard defines the S-VLAN as the Service Provider VLAN and
the C-VLAN as the customer VLAN. The radio software does 2-layer Q-in-Q
whereby the C-VLAN is the 802.1Q tag and the S-VLAN is the second layer Q
tag as shown below:
Ethernet
Header
S-VLAN
EthType 0x88a8
C-VLAN
EthType
0x8100
IP Data EthType
0x0800
The 802.1ad S-VLAN is the outer VLAN that is configurable on the
Configuration > VLAN web page of the BHM. The Q-in-Q EtherType
parameter is configured with a default EtherType of 0x88a8 in addition to
four alternate EtherTypes that can be configured to aid in interoperability
with existing networks that use a different EtherType than the default.
The C-VLAN is the inner VLAN tag, which is the same as 802.1Q. As a top-
level concept, this operates on the outermost tag at any given time, either
“pushing” a tag on or “popping” a tag off. This means packets will at most
transition from an 802.1Q frame to an 801.ad frame (with a tag “pushed” on)
or an untagged 802.1 frame (with the tag “popped” off. Similarly, for an
802.1ad frame, this can only transition from an 802.1ad frame to an 802.1Q
frame (with the tag “popped” off) since the radio software only supports 2
levels of tags.
VLAN Not Active
When VLAN is enabled in the BHM, the Active Configuration block provides
the following details as read-only information in this tab. In the Cambium
fixed wireless broadband IP network, each device of any type is
automatically a permanent member of VID 1. This facilitates deployment of
devices that have VLAN enabled with those that do not.
Summary of Contents for PMP 450 AP
Page 51: ...Chapter 1 Configuration Quick link setup Page 1 23 ...
Page 155: ...Chapter 1 Configuration Configuring security Page 1 127 ...
Page 163: ...Chapter 1 Configuration Configuring security Page 1 135 ...
Page 164: ...Chapter 1 Configuration Configuring security Page 1 136 ...
Page 193: ...Chapter 1 Configuration Configuring radio parameters Page 1 165 ...
Page 194: ...Chapter 1 Configuration Configuring radio parameters Page 1 166 ...
Page 195: ...Chapter 1 Configuration Configuring radio parameters Page 1 167 ...
Page 206: ...Chapter 1 Configuration Configuring radio parameters Page 1 178 ...
Page 210: ...Chapter 1 Configuration Configuring radio parameters Page 1 182 ...
Page 636: ...Chapter 5 Troubleshooting Logs Page 5 16 Figure 95 SM Authorization log ...