V7.x Packet Controllers
ISG2 Controller Overview
032R440-000
Xedge 6000 Hardware
4-3
Issue 17
Installation & Setup Guide
ISG2 Controller Overview
Xedge Switch Version 7.10 and later supports the IP Services Gateway (ISG2) Slot
Controller. The ISG2 is a single-width slot controller for Xedge Switches.
Features & Benefits
•
Lowers costs of branch/remote IP access-to-centralized routing resources.
•
Supports OSPF, RIP2 Routing, and deterministic static routes.
•
Guarantees quality of service by routing IP traffic across Xedge networks based on
destination IP address & IP classification.
•
Reliably extends IP connectivity and services on converged networks carrying
voice, multimedia and low-speed data applications that require explicit service
quality.
•
Traffic shaping; IP QoS
•
Establishes a resilient foundation for future application/feature development.
•
Provides standard-based SNMP management interface for Xedge switches.
•
Installs in a single slot 0 or non-slot 0 position in any Xedge 6000 chassis.
Traffic Management
ISG2 offers superior traffic management capabilities to assure that priority traffic (for
example, real-time IP flows such as IP video packets) is not perturbed when the
destination route encounters congestion from bursty traffic. Each ISG2 module acts on
priorities based on destination IP addresses, and assures QoS across the wide-area
network. Through intelligent tunnel management and queueing, ISG2 buffers up to
1000 frames to handle burst traffic.
Routing
ISG2 determines routes based on IP destination addresses. ISG2 builds layer-3 tunnels
across the Xedge cloud to other ISG2s and selected Layer-3 devices (e.g., centralized
router resources or external routers connected to the network via MPLS or ATM
interfaces). Each ISG2 supports more than 128 IP tunnels which may be established
using OSPF, RIP2, or deterministic MPLS/ATM routes, or by selecting a specific ISG2
tunnel as a local site’s default gateway. ISG2 can be configured with auto re-routing,
along with variations on limited and restricted re-routing.
Power Up or Reboot Sequence
1. All three LED indicators off.
2. LNK FLT on, FLT and RUN alternately flashing.
3. RUN on, FLT flashing, LNK FLT on.
4. RUN on, FLT off, followed by normal LED indications as described in
.
MGMT
USER
FLT
RUN
LNK
FLT
ISG2
