Packets handled by data plane tasks usually travel

Packets handled by data plane tasks usually travel through the device (router), while packets handled
by control plane tasks usually originate or terminate at the device.

Section 1 Page 23
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All Rights Reserved © Alcatel-Lucent 2011
7750 Product Overview
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7750 Service Router
Product Overview
Chassis modes
Note: Chassis mode does not apply to the 7710SR, 7750SR-1, or ESS-1
IPv6
64K Queues
Scale ARP cache 500k
MAC FIB 500k
IOM3 D
2 Network Processors on egress
IPv6
ARP Cache 150K
MAC FIB 192K
VPRN Next Hop Label 128K
IOM2-20g C
IPv6
ARP Cache 100K
MAC FIB 128K
VPRN Next Hop Label 16K
ESM, additional counters and routed CO/L3
group interfaces
IOM-20g-b
IOM2-20g
B
Supported for configuration compatibility IOM-20g not supported
IOM-20g-b
A
Features/Scaling IOM Support Chassis
Mode
7750 SR-7 & SR-12
°
Depending on the chassis type and IOM type, the following modes can be configured:
Chassis Mode A: This mode corresponds to scaling and feature set associated with iom-20g
Chassis Mode B: This mode corresponds to scaling and feature set associated with iom-20g-b
Chassis Mode C: This mode corresponds to scaling and feature set associated with iom2-20g
Chassis Mode D: This mode corresponds to scaling and feature set associated with iom3
When configuring a chassis mode, use Chassis Mode that aligns with the earliest generation of IOM
installed. If the chassis mode is not explicitly provisioned in the configuration file, the chassis will come
up in Mode A by default. In Mode A:
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iom-20g-b comes online if provisioned as iom-20g or iom-20g-b
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iom2-20g comes online if provisioned as iom-20g, iom-20g-b or iom2-20g
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iom-10g comes online if provisioned as iom-10g
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iom3 comes online if provisioned as iom3
Note All IOMs must be IOM3 in order to configure chassis mode D.

Section 1 Page 24
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All Rights Reserved © Alcatel-Lucent 2011
7750 Product Overview
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7750 Service Router
Product Overview
7750 SR Ethernet MDAs
20 10 2 1 100 Gb/s 100 Gigabit Ethernet
200 100 20 10 1000 Mb/s 1000Base FX Ethernet*
200/20 100/10 20/2 10/1 1/10 Gb/s 1-10Gig + 10-1 Gigabit Ethernet
80 40 8 4 10 Gb/s 10 Gigabit Ethernet*
400 200 40 20 1 Gb/s Gigabit Ethernet*
SR-12 SR-7 SR-1
Ports per 7750 SR Ports per
MDA
Interface
Speed
MDA Type
20 16 4 2 10 Gb/s 10 Gigabit Ethernet*
10 8 2 1 10 Gb/s 10 Gigabit Ethernet
200 100 20 10 1 Gb/s Gigabit Ethernet
100 50 10 5 1 Gb/s Gigabit Ethernet
400 200 40 20 100 Mb/s 100Base FX Ethernet
400 200 40 20 10/100/1000 Mb/s 10/100/1000 TX Ethernet*
1200 600 120 60 10/100 Mb/s 10/100 Ethernet
°
* MDA Types supported on the IOM3
New in Release 6.1:
10-Port GigE High-Scale MDA “Queuing MDA”
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1000BASE Ethernet MDA which supports 10 pluggable Optical SFPs
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Supports up to 20,000 SAPs/Subscribers and up to 8,000 services on the iom2-20g
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Extensive on-board queuing and buffering with either service scheduling classes per service on the
7750SR translating to 160,000 ingress and 160,000 egress queues
The IOM3 supports up to 25G/MDA therefore some MDA Types which are considered to be
oversubscribed on the IOM2 are non-oversubscribed on the IOM3. For example the 2 port, 10 Gigabit
Ethernet MDA Type is non-oversubscribed on the IOM3 and oversubscribed on the IOM2.

Section 1 Page 25