ISG 20, ISG 22+, ISG 24, ISG 26
Ethernet demarcation. The point where the networks meet is rapidly becoming the nexus for management information. It is also the point where some of the shortcomings of Ethernet as a wide area service are often pointed out. These shortcomings include:
- Lack of consistent Ethernet interface at all locations - local and remote
- Lack of OAM (Operations, Administration and Maintenance)
- Lack of Performance Monitoring Capabilities
- Lack of SLA Assurance Capabilities
- No clear demarcation points between the Carrier and the End Customer
- No loopback capabilities
- Little or no testability of the carrier circuit
- No fault isolation features
The ISG 2x series from Overture Networks were designed and built with these issues in mind. This low cost family of products address these issues by:
- Setting a clear and consistent demarcation point between the customers' and the carriers' networks—no matter which vendors’ products are used in the core or edge networks
- Delivering a consistent management interface through standards-based operations, administration and maintenance (OAM) protocols
- Acting as onsite technicians, responding to remote service requests for loopbacks and other remote diagnostics, which keeps truck rolls to a minimum
- Monitoring and reporting on the end-to-end parameters of your Service Level Agreements (SLAs)
The ISG 2x family consists of:
- ISG 20 - 10/100BaseT to 10/100BaseT
- ISG 22+ - 10/100BaseT to 100BaseFX
- ISG 24 - 10/100/1000 TX/FX/LX/SX to 10/100/1000 TX/FX/LX/SX
- ISG 26 - 10/100/1000 TX/FX/LX/SX to 10/100/1000 TX/FX/LX/SX
The ISG 2x products, running under the EdgeAware umbrella, implement standards-based OAM (including 802.3ah EFM OAM) and loopbacks. In addition, the ISG 2x's provide performance monitoring that measures and tracks end-to-end SLA parameters such as latency, jitter, packet loss and availability - while the services are running.
Technical Specifications
ISG 20
- Network side interface
- 10/100BaseTx
- Connector: RJ-45 (Auto-negotiation / AutoMDIX)
- Client side interface
- 10/100BaseTx
- Connector: RJ-45 (Auto-negotiation / AutoMDIX)
ISG 22+
- Network side interface (2)
- 10/100BaseFX/LX/SX/ZX/BX (SFP-dependent)
- Connector: SFP module
- Client side interface (2)
- 10/100BaseFX/LX/SX/ZX/BX (SFP-dependent)
- Connector: SFP module
ISG 24 / ISG 26
- Network side interface
- 10/100/1000BaseFX/LX/SX/ZX/BX (SFP-dependent)
- Connector: SFP module or RJ-45 (Auto-negotiation / AutoMDIX)
- Client side interface
- 10/100/1000BaseFX/LX/SX/ZX/BX (SFP-dependent)
- Connector: SFP module or RJ-45 (Auto-negotiation / AutoMDIX)
ISG 20, ISG 22+, ISG 24 and ISG 26 NID Features
- IEEE 802.3ah Ethernet OAM
- Two-port MAC Relay (TPMR) function aligned with IEEE's 802.1aj, 802.1ad, and 802.ag / ITU-T Y.1731 drafts
- Loopbacks
- Layer 1, Layer 2 (MAC swap), Layer 3 (IP swap), Layer 4 (TCP/UDP Port swap)
- Automatically reacts to in-band loopback commands from industry-popular Ethernet test sets
- Individual VLAN loopbacks
- Loopback on specific MAC source and / or destination address
- Loopback on specific IP source and / or destination address
- Thru-traffic per-flow statistics (per VLAN, per Ethertype, per ToS, per CoS, per MAC, per IP, etc.)
- VLAN tagging / de-tagging
- VLAN stacking (.1Q in .1Q)
- Through traffic wire speed filtering (L2CP, BPDU, per-VLAN, Ethertype, Protocol type, MAC, IP, User defined)
- Per-flow rate limiting service mapping (ISG 24 only)
- Service mapping (ISG 24 and ISG 26)
- Traffic shaping and Hierarchical Queuing (ISG 26)
- Optical Digital Diagnostics (SFF-8472) with threshold crossing alerts via SNMP traps
- Integrated copper TDR cable integrity test
- RFC 2544 Traffic Generator (ISG 24 and ISG 26 only)
- RFC 2544 Traffic Suite (ISG 26 only)
- Dying Gasp (via 802.3ah or SNMP traps)
- Support for Jumbo frames
- Fault Propagation
- Link Loss Return
Performance Assurance
- Constant in-service monitoring of SLA parameters, including
- Packet loss
- Two-way delay (round trip latency)
- Two-way delay variation (round trip jitter)
- One-way delay variation (one-way jitter)
- Continuous end-to-end path
- Continuity check
- High Precision measurements with 1 microsecond resolution
- Works at Layer 2 and Layer 3
- Assures SLAs per VLAN / CoS / ToS / EVC
- Point-to-point or point-to-multipoint
- Up to 100 instances
- User-settable SLA threshold crossing alerts using SNMP traps
In-line Transparent Performance
- Throughput: wire speed (100Mb/s at 100% utilization)
- Intrinsic Passthrough Traffic Latency (<0.8 microsecond (at all packet sizes)
- Intrinsic Passthrough Traffic Jitter (<0.8 microsecond (at all packet sizes)
- Intrinsic Latency for Intelligent Loopback (<0.8 microsecond (at all packet sizes)
- Intrinsic Jitter for Intelligent Loopback (<0.8 microsecond (at all packet sizes)
- Optional Network - Client Power failover bypass mode (electrical to electrical)
Physical
- 1.60"H x 5.34"W x 5.80"D
- Mounting
- Desktop, wall mount, rack mount
- Rack Mount
- 2 units side-by-side in 1U
Management
- In-band remote management over the Ethernet customer line via Network side interface
- Local management craft port: 10/100BaseT, RJ-45 connector
- Serial RS-232 management port; RJ-45 connector
- Secure Web GUI via SSL
- Secure CLI command prompt via SSH
- SNMP v1, v2C
- Management VLAN
- 802.3ah EFM OAM
- NTP client
- Remote and Local Syslog
- RADIUS authentication
- DNS client
- DHCP client
- Configuration import / export
- FTP, TFTP, SFTP, HTTP
Power options all included as standard and redundant between each other
- External AC / DC adapter (120-240VAC auto-sensing, 50-60Hz), 5VDC input to unit
- Dual (A / B) -48 VDC central office supply inputs
- Power over Ethernet (PoE) from RJ-45 (802.3af)
- Power consumption: 9 watts
- Cooling: convection cooled (no fans)
Regulatory
- IEC 60950
- FCC Part 15 Class A
- Industry Canada CS-03
- CE marking
- RoHS compliant
- NEBS Level 3 certified
Operating Temperature
- -5 to +65 degree C (standard product)
- -40 to +65 degree C (hardened product)
Storage Temperature
- -40 to +70 degree C
Humidity
- 5 - 95% non-condensing