7705 SAR
Overview
The 7705 SAR is an IP/MPLS aggregation and mobile backhaul router for the mobile RAN. Located at cell sites, the 7705 SAR uses PW over MPLS to aggregate mobile 2G and 3G traffic that it backhauls to the core network. The 7705 SAR supports ATM, TDM, and Ethernet.
7705 SAR MWA support
A packet microwave card is required to support MWA. The first four ports of the card are microwave aware. An MW link must be configured to enable MWA. MW link support includes 1+0 and 1+1 HSB protection. When configuring 1+1 HSB, each of the two radios is assigned a role of main radio or spare radio. By default, the main radio assumes the active status and the spare radio assumes the standby status. For 1+0 protection, MPT-HC, MPT-HCv2, MPT-HLC, MPT-HQAM, and MPT-MC are supported. For 1+1 HSB protection, MPT-HC, MPT-HCv2, MPT-HLC, and MPT-HQAM are supported.
1+1 HSB protection is displayed in the NFM-P physical topology map. The protection state is shown on the links, and 1+1 links are grouped in a common link group. The expansion of radio links on the physical map displays eight links. See Topology map types for more information about the NFM-P physical topology map.
Note: If the Wavence SA is discovered before the 7705 SAR (single NE with 1+0 protection), the radio link is not shown on the topology map. Only after discovering the 7705 SAR will the radio link be shown on the topology map between the 7705 SAR and the Wavence SA.
1+1 HSB protection is only supported between two 7705 SAR NEs.
The following protection types are supported:
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Radio Protection Switching (RPS)
RPS is always supported in 1+1 radio configurations (HSB). RPS is implemented directly on a pair of MPTs.
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Transmission Protection Switching (TPS)
TPS is always supported in 1+1 HSB radio configurations.
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Equipment Protection Switching (EPS)
EPS protects the MPT and cables connecting the MPT to the IDU. RPS protection always assumes the MPT EPS.
See To configure a 7705 SAR MW link for more information about configuring an MW link. See To configure a 7705 SAR MW link member for more information about configuring an MW link member.
7705 SAR NEtO support
The NFM-P supports an integrated MCT from the port or NE level on the 7705 SAR-8 and 7705 SAR-18. The MCT is distributed with a NEtO client in the NFM-P. The configuration of radio parameters is through the MCT. See To launch an MCT on a Wavence SA NE connected to a 7705 SAR for more information about starting the MCT from the NE level.
7705 SAR SCADA support
The NFM-P supports SCADA on the 7705 SAR-8 and 7705 SAR-18, Release 6.1 R1 or later. SCADA is an industrial data management system that monitors and controls IEDs. See Shelf objects in the NFM-P navigation tree for more information about SCADA. See To configure SCADA on a 7705 SAR for more information about configuring SCADA on the 7705 SAR.
7705 SAR ISC
The 7705 SAR-8 and 7705 SAR-18 support an ISC that is equipped with a large FPGA and a Winpath network processor. The FPGA supports multiple applications on the same card by using separate images while providing the ability to perform IP/MPLS functionality such as pseudowire termination.
The ISC only supports one application running per card at a time. Multiple ISCs can be supported on a 7705 SAR-8 or 7705 SAR-18. At least one networking card is required to provide access to the ISCs.
Network or access mode configuration is not applicable on the ISC; however, the card provides access capabilities.
An ISC is required to configure SCADA and VCB on the 7705 SAR-8 and 7705 SAR-18. For more information about SCADA, see Shelf objects in the NFM-P navigation tree . For more information about VCB, see To configure voice conference bridging on a 7705 SAR.
Note: MDDB and PCM multidrop bridge applications are supported on the ISC.
7705 SAR-A
The 7705 SAR-A is equipped with integrated twelve-port Ethernet MDA daughter cards.
7705 SAR-Ax
The 7705 SAR-Ax transports all types of data from a mobile cell site to a higher aggregation point of presence. The 7705 SAR-Ax also targets fixed and vertical networks.
The 7705 SAR-Ax maintains the same data plane forwarding capacity and control plane scalability as the 7705 SAR-A. The IP MPLS features are also similar to the 7705 SAR-A.
The security features such as IPsec, NAT, Firewall, and NGE are similar to the 7705 SAR Wx.
7705 SAR-F
The 7705 SAR-F integrates eight-port Ethernet v3 and 16-port DS1/E1 v2 ASAP MDA functions in one chassis. When the NFM-P discovers a 7705 SAR-F, the integrated MDAs are automatically configured and displayed in the equipment tree.
7705 SAR-H
The 7705 SAR-H is a hardened router and is based on the 7705 SAR-8, 7705 SAR-18, 7705 SAR-F, and 7705 SAR-M functionality.
The NFM-P allows you to configure the MDA mode of some MDA types on the 7705 SAR-H. There are two types of MDAs:
The 7705 SAR-H supports the 4 × 10/100 Ethernet module card in slots 2 and 3. The module card supports four fast Ethernet ports in access or network mode. The ports can be bound to a network interface, all routing protocols, and a VPRN, IES and VLL service.
The 7705 SAR-H supports power supply tray objects, which are automatically provisioned.
7705 SAR-Hc
The 7705 SAR-Hc is equipped with six Ethernet ports:
The 7705 SAR-Hc is equipped with a single internal power supply that operates at +/–20 V dc to 75 V dc. When the 7705 SAR-Hc is used for high-voltage applications, an external high voltage power supply is available.
The 7705 SAR-Hc supports power supply tray objects, which are automatically provisioned.
7705 SAR-Hm
The 7705 SAR-Hm is a small-form wireless router that extends IP/MPLS services over secure 3G/LTE wireless networks. The 7705 SAR-Hm is equipped with six Ethernet ports, two RS-232 ports, two SIM card slots, a WLAN interface, GPS, a GNSS receiver, and an alarm port. The 7705 SAR-Hm system software is a variant of the SROS, and supports IP/MPLS features that are supported on 7750 SR nodes.
7705 SAR-Hm configurations
Information about SIM cards installed on the 7705 SAR-Hm is displayed on the Cellular tab of the cellular port configuration form. The 7705 SAR-Hm is discovered through ADP-Hm; see Device discovery and deployment using ADP. For information on cellular domain management; see Chapter 47, Cellular domain management.
The following table lists where to find information about configuring the 7705 SAR-Hm:
Table 6-3: Configuring the 7705 SAR-Hm
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To configure: |
See: |
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Cards, ports and interfaces | |
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Cellular ports |
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Dual SIM switchover parameters |
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PDN policies |
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PDN interfaces |
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Serial raw sockets |
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GNSS for IP transport |
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GNSS for data streaming, location details, and listing visible satellites |
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WLAN ports (Access Point) |
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Security | |
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New security PIN |
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7705 SAR-Hmc
The 7705 SAR-Hmc is a compact variant of the 7705 SAR-Hm. The 7705 SAR-Hmc is equipped with three Ethernet ports, two RS-232 ports, two SIM card slots, GPS, a GNSS receiver, and an alarm port. The 7705 SAR-Hmc system software is a variant of the SROS, and supports IP/MPLS features that are supported on 7750 SR nodes. Besides the 7705 SAR-Hmc having three Ethernet ports (compared to six Ethernet ports on the 7705 SAR-Hm), and no WLAN interface, the 7705 SAR-Hmc supports the same features as the 7705 SAR-Hm.
You must configure CBSD information for the 7705 SAR-Hmc to execute the CBSD state machine, register with the CBRS Spectrum Access System (SAS) and be granted access before ADP-Hm is allowed to run. Once “Authorized”, the ADP-Hm can start sending SNMP traps over the router interface. For CBSD-related configuration, see To configure a cellular port on a 7705 SAR-Hm.
In the NFM-P documentation, mentions of 7705 SAR-Hm also apply to 7705 SAR-Hmc unless otherwise stated, or unless a WLAN interface is required.
From NFM-P, Release 20.11 and later, the 7705 SAR-Hmc supports both ADP and non-ADP radio card firmware upgrade.
7705 SAR-M
The 7705 SAR-M variants are equipped with an integrated 7-port Ethernet card. Depending on the variant, a 7705 SAR-M may have an integrated 16-port channelized DS1/E1 ASAP card or a module slot.
7705 SAR-W
The 7705 SAR-W is equipped with an integrated daughter card that supports five data plane Ethernet ports: three SFP ports and two RJ-45 ports. The Ethernet ports are classified as permanent connections with primary surge protection.
7705 SAR-Wx
The 7705 SAR-Wx transports all types of traffic over a packet-switched network from a mobile cell site to a higher point of presence or to a mobile telephone switching office.
The Ethernet data ports support the following types of connections:
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microwave device connections—NLOS or LOS microwave connections on the RJ-45 PoE+ ports
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network connections—Gigabit Ethernet fiber connections on the three SFP ports
7705 SAR-X
The 7705 SAR-X is a fixed variant with three integrated MDAs.
Dynamic system IP address updates for 7705 SAR nodes
When a 7705 SAR node is configured to acquire an address from a DHCP pool, the system IP address may change. You can configure the NFM-P to react automatically to the change, and adjust to use the new IP address for communication and for SDPs destined for the node.
See the procedure to enable dynamic system IP address updates for 7705 SAR nodes in the NSP System Administrator Guide for information about enabling this feature.