Known Restrictions and Limitations

KNOWN RESTRICTIONS AND LIMITATIONS:

Known Restrictions and Limitations are sorted alphabetically by topic heading.

10-Gigabit Ethernet	I.D.
PIM is not currently supported.	F2025

If a single smarttrunk add ports command contains more than one 10-Gig port, hot swapping one	F4528
of the ports out of, then back into the router prevents the port from rejoining the SmartTRUNK.
Hot swapping an ER16-OS16-01 or ER16-OS26-01 module that belongs to a SmartTRUNK out of	F4575
the router will disable all ports in the SmartTRUNK.

Asynchronous Transfer Mode (ATM)	I.D.
The X-Pedition does not support bridging over ATM with the following frame types: 802.2 IPX, 802.3	H0041
Raw, and Ethernet Snap.

Broadcast Monitor (BMON)	I.D.
When BMON is enabled on a port, if the Layer-2 table for a port is repeatedly filled with	F1414
incrementing source MAC addresses, the X-Pedition will be unable to remove enough entries to
keep pace and will produce the following error message:
%L2TM-E-DMND_DEL, could not remove enough entries from L2

Cabletron Discovery Protocol (CDP)	I.D.
CDP identifies some adjacent device types (such as switches, routers, etc.) incorrectly.	F1324
	F1750
A CDP packet’s “device-ip” field may be set incorrectly when transmitted.	F1475
	F1748

Distance Vector Multicast Routing Protocol (DVMRP)	I.D.
Multicast packets are not tagged before entering an 802.1Q trunk port that connects to another	F3612
router.

Dynamic Host Configuration Protocol (DHCP)	I.D.
After a reboot, a previously assigned DHCP lease address may be reassigned to another router.	F1976

Flow Control	I.D.
Flow Control on X-Pedition Gigabit ports will not slow their link partners to meet the maximum	F1683
receive rate.	H0031
The port set <port> auto-negotiation-flowctl off command will produce the same effect as the	F1832
port set <port> auto-negotiation-flowctl both command.	H0031

10/02/03 P/N: 9038090-53

Subject to Change Without Notice

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