Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 371
An access port is used for customer-facing traffic on which services are configured. A
Service Access Point (SAP) can only be configured on an access port or channel. Once an
Ethernet, DSL, or GPON port has been configured for access mode, multiple services can be
configured on it.
A network port participates in the service provider transport or infrastructure network when
network mode is selected.
A hybrid Ethernet port allows the combination of network and access modes of operation on
a per-VLAN basis and must be configured for either dot1q or qinq encapsulation.
A hybrid port must use dot1q encapsulation to be configured as a network IP interface.
Binding a network IP interface to a qinq encapsulation is blocked. In hybrid mode, qinq
encapsulation is for access mode use only.
If the hybrid port is configured for dot1q encapsulation, the user configures a SAP inside a
service or a network IP interface as follows:
• configure a SAP under config>service by providing the SAP ID, which must include the
port-id value of the hybrid port and an unused VLAN tag value. The format is port-
id:qtag1. A SAP of format port-id:* is also supported.
• configure a network IP interface under config>router>if>port by providing the
port-name, which consists of the port-id of the hybrid port and an unused VLAN tag
value. The format is port-id:qtag1. The user must explicitly enter a valid value for qtag1.
The port-id:* value is not supported on a network IP interface. The VLAN tag space on
the port (range of 0 to 4094) is shared among VLAN SAPs and VLAN network IP
interfaces.
If the hybrid port is configured for qinq encapsulation, the user configures a SAP inside a
service as follows:
• configure a SAP under config>service by providing the SAP ID, which must include the
port-id value of the hybrid port and the outer and inner VLAN tag values. The format is
port-id:qtag1.qtag2. A SAP of format port-id: qtag1.* is also supported. The outer VLAN
tag value must not have been used to create an IP network interface on this port. In
addition, the qtag1.qtag2 value combination must not have been used by another SAP
on this port.
The no form of this command restores the default.
Default access (except as listed below)
network (for 10-port 1GigE/1-port 10GigE X-Adapter cards, 2-port 10GigE (Ethernet) Adapter
cards, 2-port 10GigE (Ethernet) modules, DSL modules, and GPON modules)
Parameters access — configures the port as service access
network — configures the port for transport network use
hybrid — configures the port for hybrid use (transport network and service access per
VLAN)
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