Alcatel-Lucent 7250 SAS - Manual (Page 3)

Alcatel-Lucent 7250 SAS | Data Sheet 3
Technical specifications
interfaces
• Twelve 100Base-FX Small Form
Factor Pluggable (SFP) ports
• Eight 10/100Base-T RJ-45 ports
• Two Enhanced GigE SFP uplink
ports
• Two GigE SFP ports
• Optional CES access module with
4-port DS1/E1 RJ-48c ports with
TCXO and OCXO variants
• Four dry contact inputs through
a DB-9 connector (on rear panel)
ethernet switching features
• Technology: Application Specific
Integrated Circuit- (ASIC) based,
with parallel store-and-forward
• Bridging
¬ IEEE 802.1d Spanning Tree
Algorithm
¬ IEEE 802.1p Priority Queuing
¬ IEEE 802.1q VLAN Tagging
¬ IEEE 802.1w Rapid Spanning
Tree Algorithm
¬ IEEE 802.1s Multiple Spanning
Tree Algorithm
¬ IEEE 802.3ad Link Aggregation
¬ Fast ring Ethernet Ring Restora-
tion (<50 ms)
• 4092 virtual LAN (VLAN) IDs per
IEEE 802.1q
• Ability to disable learning per
access port
• Ability to set Media Access Control
(MAC) entry limits per service and
per access port
• Notification that the MAC table
limit has been reached
• Statistics: According to Access
Control List (ACL)
• Address table: 16,000 MAC table
entries
• Forwarding rate
¬ 148,000 pps per 100 Mb/s port
¬ 1,488,000 pps per 1 Gb/s port
• Flow control: IEEE 802.3x for full
duplex; back pressure for half
duplex transmission
• Port trunking: IEEE 802.3ad Link
Aggregation
mpLs features
• RSVP-TE: according to RFC 3209
• FRR, including support for rapid
failure detection and switching,
penultimate hop popping (PHP),
point of local repair (PLR), and
merge point functionality with
dynamic bypass LSPs for MPLS
ring topologies
• Multiple LSPs and the ability to
use different LSPs using specific
pseudo-wires for VPWS on en-
hanced GigE uplink ports
• Signaling of MPLS Power Distribu-
tion Units (PDUs) with expired
Time to Live (TTL) to the central
processing unit (CPU) according
to RFC 3443
• Definition of different LSPs to
different hubs and load balancing
among them
• Label switched router (LSR)
functionality, enabling support
for tandem or ring applications
• Label edge router (LER) function-
ality, providing for:
¬ label stacking of up to two
labels for LSP and the virtual
circuit (VC) with an additional
third label for OAM
¬ label stacking of up to three
labels for FRR+LSP+VC with an
additional fourth label for OAM
• Hierarchical VPLS (H-VPLS) spokes
• MPLS traffic engineering: Label
Distribution Protocol (LDP) and
targeted LDP (TLDP)
• Dual homing: One active service
distribution point (SDP) and a
single backup SDP
• Link Aggregation Control Protocol
(LACP) and static Link Aggrega-
tion Groups (LAGs) are supported
with MPLS
• Ability to revert switching to
backup SDP based on LDP/TLDP
hello failure
• Selectable uplink ports (for ex-
ample, 10/100Base-T, 100Base-FX
or GigE)
• Global definition of the number of
retries to set up an RSVP-TE LSP
• Support for re-signaling of RSVP-
TE based on LSP demand
• Definition of up to 16 calculated
or configured hops in each path
• Support for strict and loose hops
on the same path
• Global definition of the amount of
time that the ingress node holds
before programming its data
plane and declaring the LSP is up
• Definition of up to 16 calculated
or configured hops in each path
VpLs features
• Rate limiting and priority on a
per-VLAN basis
• Application of qualified and
unqualified MAC learning to the
same port
• Ability to disable MAC learning
per port
• Ability to limit the number of
MAC entries learned per service
access point
• Notification that the MAC table
limit has been reached
• Discarding of packets with
unknown destination in a VPLS
instance
• Discarding of packets with un-
known source in a VPLS instance
• Statistics per service access point
• Internet Group Management
Protocol (IGMP) snooping
H-Qos features
• Per-service and per-forwarding
class queuing
• Up to two levels of hierarchical
scheduling
• 16,000 queues for ingress and
16,000 queues for egress
• Up to 32 forwarding-class queues
per service
• Congestion avoidance and buffer
allocation using hierarchical
weighted random early detection
(WRED) mechanism
• Up to two levels of hierarchical-
scheduling policing parameters,
including committed information
rate (CIR), peak information rate
(PIR), committed burst size (CBS),
maximum burst size (MBS), and
high-priority settings
• Rate limiting for bandwidth al-
location
• Separate access-list rate limiter
for broadcast and/or multicast, in
frames per second
• Extensive accounting and billing
capabilities
• Enhanced filtering capabilities
Qos features
• Advanced QoS, with IEEE 802.1p
and differentiated services code
point (DSCP) filtering/marking/
re-marking
• Eight output queues per port
• Rate limiting for bandwidth al-
location
• Setting of a separate access-list
rate limiter for broadcast and
multicast traffic, in frames per
second
• Mapping of untagged traffic into
a separate VPN
• Mapping of untagged traffic on
tagged ports
• ACL and policing statistics
• Packet and byte counter statistics
(ingress and egress)
Ces features
• Structure-Agnostic Traffic over
Packet (SAToP) for unstructured
DS1/E1 channel transport
• CES over Packet-Switched Net-
works (CESoPSN) for structured
n*64 kb/s channel transport
• Loop, line, adaptive and free-run
timing options
• Encapsulation techniques
¬ IP packets (as defined by
CESoPSN/SAToP)
¬ Ethernet packets (according
to MEF 8)
¬ MPLS Martini Pseudowire
Emulation Edge to Edge (PWE3)
(as defined by CESoPSN/SAToP)
• DS1 specifications
¬ Unframed, super-framed and
extended super-framed mode
¬ ANSI T1.403-1989
¬ ANSI T1.102-1993
¬ ANSI T1.107-2002
• E1 specifications
¬ Unframed and framed modes
¬ ITU-T G.703
¬ ITU-T G.823 traffic interfaces
¬ ITU-T G.824 traffic interfaces
¬ Multiframe CRC-4 generation,
multiframe channel associated
signaling (CAS), common chan-
nel signaling (CCS)
Oam features
• MEF OAM that includes end-to-
end service discovery and SLA
validation over Ethernet uplinks
and over VPLS clouds
• IEEE 802.1ag implementation,
defining proactive and diagnostic
fault localization procedures to
monitor the health of links, check
the connectivity of ports, detect
fabric failures, and provide hierar-
chical layering of OAM perspectives
for customers, service providers
and operators
• IEEE 802.3ah EFM OAM imple-
mentation for transport layer
OAM, providing mechanisms to
monitor the operation and health
of the physical link and improve
fault isolation
• Bi-directional Forwarding Detec-
tion (BFD) to monitor and detect
failures on the Open Shortest
Path First (OSPF) protocol
• MPLS LSP ping and traceroute
• Service assurance agent, providing
two-way performance measure-
ment of frame-delay variation,
frame-loss ration, packet loss,
and round-trip delay