Interface Configuration Guide 7705 SAR Interfaces
Edition: 01 3HE 11011 AAAC TQZZA 65
• 7705 SAR-A Ethernet ports (except for the Fast Ethernet ports (ports 9 to 12))
• 7705 SAR-Ax Ethernet ports
• 7705 SAR-M Ethernet ports
• 7705 SAR-H Ethernet ports
• 7705 SAR-Hc Ethernet ports
• 7705 SAR-W Ethernet ports
• 7705 SAR-Wx Ethernet ports
• 7705 SAR-X Ethernet ports
In some scenarios, combining the access and network capabilities under the same
port is beneficial. A typical scenario is shown in Figure 1, where a single port hosts
both access-side services and a traffic management model together with
network-side IP/MPLS routing and switching capabilities simultaneously.
In this scenario, a network interface is configured to ensure connectivity between the
cell site 7705 SAR and the aggregation site 7705 SAR. The network interface is used
for all IP/MPLS traffic and is bound to VLAN-1. Another VLAN (VLAN-2) is configured
to bind the management traffic of a microwave radio (an MPR-e) to an access-side
service such as an Ethernet PW or VPLS. For security reasons, many mobile
operators prefer to transport management traffic of network elements under a service
construct as opposed to basic GRT-based routing. To accommodate this preference,
an access-side service and a network interface can be configured to coexist on the
same port when the port is configured for hybrid mode.
Figure 1 Hybrid Port Application
FC=EF
FC=AF SAP-1
Hybrid
Port
FC=BE
FC=EF
FC=AF VLAN-1
FC=BE
7705 SAR
7705 SAR
Agg.
vlan-2
vlan-1
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