Features And Scaling - Avaya 8800 Planning And Engineering

Drop Multiplexing (ADM) products, such as the Optical Cross Connect DX. This allows the 10
GbE WAN modules to synchronize to a WAN timing hierarchy, and minimizes timing slips.
Interworking 10 GbE WAN across an Add-Drop Multiplexer requires the use of an OC-192c/
VC-4-64c payload cross-connection device.
When connecting 10 GbE modules back-to-back, or through metro (OM5200) or long haul (LH
1600G) dense Wavelength Division Multiplexing (DWDM) equipment, you can use the timing
combinations of internal-internal, line-internal, or internal-line on both ends of the 10 GbE WAN
connection. In these scenarios, at least one of the modules provides the reference clock.
DWDM equipment does not typically provide sources for timing synchronization. For DWDM,
Avaya recommends that you avoid using a line-line combination because it causes an
undesired timing loop.
The following table describes the recommended clock source settings for 10 GbE WAN
interfaces. Use these clock settings to ensure accurate data recovery and to minimize SONET-
layer errors.
Table 4: Recommended 10GE WAN interface clock settings
Clock source at both ends of
the 10 GbE WAN link
internal-internal
internal-line
line-internal
line-line

Features and scaling

The following tables show scaling information and features available on the Avaya Ethernet
Routing Switch 8800/8600. For the most recent scaling information, always consult the latest
version of the Release Notes.
Table 5: Supported scaling capabilities
Layer 2
MAC address table entries
VLANs (port- protocol-, and IEEE 802.1Q-
based)
IP subnet-based VLANs
Ports in Link Aggregation Group (LAG,
MLT)
Planning and Engineering — Network Design
Back-to-back with dark
fiber or DWDM
Yes
Yes
Yes
No
Maximum supported 8692SF with
SuperMezz or 8895SF (R or RS series
64 000 32 000 when SMLT is used
4000
800
8
SONET/SDH WAN with ADM
No
No
No
Yes
modules)
November 2010
Modules
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