IPmux-24
TDM Pseudowire Access Gateway
Preserves investment
in legacy equipment in
migration to PSN
ETHERNET SERVICE OAM (802.1ag)
The unit uses the end-to-end Ethernet-
layer OAM protocol for proactive
connectivity monitoring, fault verification,
and fault isolation, according to the IEEE
802.1ag and ITU-T Y.1731 requirements.
LINK OAM (IEEE 802.3ah)
Link-layer OAM according to IEEE 802.3ah
is used for fault indication and loopback
activation response.
MANAGEMENT
IPmux-24 can be configured and
monitored locally via an ASCII terminal, or
remotely via Telnet/SSH, Web browser or
RADview.
Management traffic can run over a
dedicated VLAN.
The RADview Service Center and Element
Manager packages control and monitor
pseudowire devices and circuits. The
Service Center’s intuitive GUI, “point and-
click” functionality and easy-to-follow
wizards increase the efficiency and
accuracy of the service provisioning
process.
IPmux-24 performs RADIUS client
authentication. Using SSH and SSL
encryption protocols allows secure
communication over potentially insecure
IP-based networks.
The Syslog protocol is used by IPmux-24
to generate and transport event
notification messages over IP networks to
the central Syslog server. The Syslog
operation is compliant with the RFC 3164
requirements.
SNMPv3 support introduces a user-based
security model, enhances authentication
and encryption techniques, and ensures
management traffic security.
Each management and service host has a
separate MAC address. As the unit
provides one default gateway, the user
can also specify static routes to enhance
the IP routing capabilities of the
management and pseudowire traffic.
Software is downloaded via the local
terminal, using XMODEM, or remotely,
using TFTP. After downloading a new
software version, IPmux-24 automatically
saves the previous version in non-volatile
memory for backup purposes. Similarly,
copies of the configuration file may be
downloaded and uploaded to a remote
workstation for backup and restore
purposes.
OAM AND DIAGNOSTICS
The following RFC-2495 E1/T1 physical
layer performance statistics are available:
LOS, LOF, LCV, RAI, AIS, FEBE, BES, DM, ES,
SES, UAS and LOMF.
IPmux-24 performs an internal built-in test
(BIT) after power-up. The results of the
test are visible via the local terminal.
LAN and IP layer network condition
statistics, such as packet loss and packet
delay variation (jitter) are monitored and
stored by the device.
Fault isolation, statistics and event logging
are available.
Fault propagation initiates service port
alarms, e.g. E1/T1 LOS, to reflect network
fault conditions. Alarms detected at
service ports are propagated to the
remote pseudowire device via the packet
network.
