From: David Powers (DPowers@xxxxxxxxxxxxxx)
Date: Wed Apr 21 1999 - 13:34:39 GMT-3
I am taking the lab on june 30th. I feel your pain. I believe that it is
possible that their may be some 3600 series routers with atm modules in
them. I remember getting an announcement talking about it. Since these
are cheaper they may include these in the lab. Not sure though.
here is the original message
The 3600 platform team is pleased to announce three new high-speed ATM
network modules that are now orderable for the 3600 series with IOS
release 12.0(3)T1 and above.
These three network modules support STS-3c and STM-1 framing standards
over
Multimode, Singlemode Intermediate Reach, and Singlemode Long Reach
fiber
optic interfaces. All 3 versions consist of a single-port network module
with SC
connector types that support the ATM Forum standard ATM adaptation layer
5
(AAL5).
The three new 3600 series ATM OC-3 network modules that will start
shipping
on April 19, 1999 include:
NM-1A-OC3MM - $6,000 - Single port ATM OC-3 Multimode Fiber network
module
NM-1A-OC3SMI - $8,000 - Single port ATM OC-3 Singlemode Intermediate
Reach
Fiber network module
NM-1M-OC3SML - $10,000 -Single port ATM OC-3 Singlemode Long Reach Fiber
network module
The ATM OC-3 Network Modules are only supported on the 3620 and 3640.
Cisco's
IOS "Plus" feature sets are required for ATM support. A maximum of one
ATM OC-3
network module is recommended on both the 3640 and 3620. There are no
additional
Flash or DRAM memory requirements for ATM network modules, other then
those
specified by the Cisco IOS Release 12.0(3)T Plus minimum memory
requirements
The 3600 does not support full 155Mbps OC-3 line rates. The maximum
supported
speeds range from 20 - 80Mbps depending on packet size, and up to 40Kpps
with
64 byte packets on a 3640.
The ATM Singlemode fiber network modules provide high-speed trunking for
users
with access to fiber WAN, while the Multimode fiber network module is
ideal for
connecting colocated high-speed servers, switches, or hubs equiped with
an OC-3/
STM-1 fiber connection.
Voice over IP and H.323 over ATM WAN can be supported using VBR-rt class
of
service SVC's, using the currently available analog Voice/Fax network
modules and
Voice Interface Cards.
OC-3 ATM Features at a Glance
· ATM Service Classes UBR, UBR+, VBR-rt, VBR-nrt, ABR, and CBR
· UNI 3.0, 3.1 and 4.0
· RFC 1483 and 1577
· Layer 2 per-VC Queuing and Traffic Shaping
· Up to 1024 simultaneous VCs
· F4 and F5 Operations and Management (OAM) cell support
· PVC's and SVC's
· LANE 2.0
· Early Packet Discard
· Tag Switching
· IETF PPP over ATM
· MPOA Client and Server
· ILMI
· ABR SVC's
· ATM UNI 4.0 Traffic Management
· ATM Bandwidth Manager
· VP Tunnels (Permanent Virtual Paths, PVPs)
· NHRP
OC-3 ATM Network Module Key Points
The introduction of ATM OC-3 network modules for the Cisco 3600
multiservice
access routers give enterprise and service provider customers a
cost-effective solution
for extending multiservice capabilities to remote branch-office
locations through
Asynchronous Transfer Mode (ATM). These new capabilities on the 3600
enable
customers to integrate mulitprotocol data, video and IP routing over
high-speed ATM,
greatly increasing the selection of Wide-Area Network (WAN) deployment
options
for legacy and LAN-to-LAN connectivity. With OC-3 ATM capability, the
3600 is an
ideal solution for customers to deploy high-speed data, voice and video
applications
through a single robust connection from the branch office to regional or
corporate
headquarters.
Enhanced ATM capabilities on the 3600 give service providers greater
traffic
management ability and Quality of Service (QoS) controls to deliver
business-quality
Voice-over-IP (VoIP) and other mission critical applications. Because
the new network
modules are standards-based ATM and fully interoperate with the complete
line of
Cisco's carrier-class ATM switches, the 3600 is a cost-effective
solution for bandwidth
management and service deployment at the service provider network edge.
The 3600
is a modular router that gives service providers the full benefit of
Cisco IOS(tm) software,
enabling them to deliver services based on the applications currently
running in the
largest enterprises.
- Cost-Effective ATM CPE Solution for High Speed Managed Router Services
- Higher ATM Access speeds (up to 80Mbps) for the 3600 Series
- Adds increased WAN flexibility to 3600 platform
- Continued investment protection
- Improved ATM QoS with support of UBR+, VBR-rt, VBR-nrt, CBR and ABR
Class of
Services
- Improved Traffic Shaping Capabilities - (done in hardware)
- New Bandwidth Resource Manager to prevent single VC oversbuscription
Frequently Asked Questions sample:
Q. On what platforms will the new ATM OC-3 network modules be supported?
A. The ATM OC-3 network modules will be supported on both the 3640 and
3620 platforms.
At this time there is no planned support on the 2600 platforms. Due to a
compatability problem
between the 3620 rev. C PCMCIA controller, and the OC-3 network modules,
any OC-3 network
module ordered as a spare to be used in a 3620 will require that the
3620 have a rev. E
PCMCIA controller installed.
Before April, 1999 all 3620's in the field have a rev. C PCMCIA
controller installed. The customer
will recieve a warning message what attempting to configure the OC-3 in
a 3620, if the incorrect
PCMCIA rev level is detected, and the system will not recognize the OC-3
network module.
If this occurs then an RMA process must be initiated by a call to the
TAC for replacement of the
3620 chassis free of charge.
Starting in April 1999 all 3620's shipped from the factory will include
rev. E PCMCIA controllers
and be compatible to all three ATM OC-3 network modules.
Please contact Bill Massung directly for any upgrade issues regarding
large 3620/ OC-3 installations
at 408/526-8464 or via email at massung@cisco.com.
Q. How many ATM OC-3 network modules are supported in a single 3640 and
3620?
A. A maximum of one ATM OC-3 network module is recommended for both the
3640 or
3620, but this is not a software-enforced restriction. More then two
high-speed
interfaces (including ATM, FE or HSSI) are not recommended in a 3640. An
understanding of the 3600 series performance considerations is
recommended when
an ATM OC-3 network module is configured with two or more high-speed
network
modules. See PB545 for more details
Q.What are the applications for the three different versions of ATM?
A. The Singlemode Intermediate Reach ATM network modules provide
high-speed
trunking for users with access to Public or private fiber optic WAN.
The
Singlemode Long Reach is best suited for "Dark Fiber" applications where
a
direct fiber optic link exists between two stations without any
intervening
hardware other then the fiber itself. Multimode is ideal for connecting
to an
ATM Switch or hub with OC-3c/STM-1 fiber in a co-located or limited
distance
application such as in a campus environment.
Q. What are the maximum distances supported by the 3 physical
interfaces?
A. Multimode version supports up to 2km, Single-Mode Intermediate
supports up
to 15km, and Long reach version supports up to 45km.
Q. Is ATM Circuit Emulation Services (CES) supported with these new
network
modules?
A. No, at FCS, structured and unstructured CES using AAL1 are not
supported. In
Q4CY99, a Voice Processing Deck (VPD) expansion card slot, and a
WAN/Voice
Interface Card for PBX connectivity will support up to 2 local T1/E1
trunk
connections to a PBX. The VPD will be supported on all three versions of
OC-3
network modules. This will not be a field upgradable option.
Q. Is Voice Over IP (VoIP) over ATM supported over OC-3 ATM?
A. Yes, VoIP over ATM can be supported over WAN using VBR-rt class of
service
SVC's using the currently available Voice/Fax network modules and
associated
Voice Interface cards. ATM provides an ideal WAN transport method for
prioritizing voice packets over data packets to deliver low-latency,
jitter-free voice support.
Q. What is the performance of the ATM OC-3 network modules on the 3600?
A. The OC-3 network modules are not capable of running at wire-rate in
either
the 3640 or 3620. The ATM OC-3 network module's Fast Ethernet to ATM
OC-3
performance on a 3640 with large packets is 80Mbps. The 3620 is capable
of up
to 68Mbps. Performance on the 3640 with 64 byte packets is 40Kpps, and
on the
3620 it is 22Kpps with 64 byte packets.
-----Original Message-----
From: Stanley Seow [mailto:stanley@silicon.net.my]
Sent: Tuesday, April 20, 1999 11:55 PM
To: Khalid.Khan@gecits-eu.com; ccielab@groupstudy.com
Subject: RE: Preparation
Any idea what is the objective of the ATM included for June labs ?
Are those the 5500 ATM module / LS1010 - ( LECS, BUS, LEC, VLAN, ELAN )
?
I m kinda worried about the ATM part actually.
Stanley
> I intended to take my lab week starting 14/6/99 in Brussels.
> I know this
> may seem a very open ended question but any tips on how to
> prepare apart
> from
> make sure you know everything about everything.
> I have been trying to get as much hands on and doing a lot of mock
> scenarios but
> get very overwhelmed with the vast subject matter since they are now
> introducing ATM.
> Over the next few weeks I have mapped out plan of what to
> study and when
> but sticking to
> it difficut.
>
> Any comments?
>
>
>
> Khalid Khan
> GE Capital IT Solutions
>
>
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