Cisco ASR 903 Release Notes

CHAPTER
1
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-08
6
Restrictions and Caveats in Cisco IOS XE 3.10
Releases
This chapter provides information about restrictions and caveats in Cisco IOS XE 3.10 releases.
Note We recommend that you view the field notices for the current release to determine whether your software
or hardware platforms are affected. You can access field notices at
http://www.cisco.com/en/US/support/tsd_products_field_notice_summary.html.
This chapter contains the following sections:
• Limitations and Restrictions, page 6-1
• Caveats in Cisco IOS XE 3.10S Releases, page 6-2
Limitations and Restrictions
The following limitations apply to the Cisco ASR 903 Router in IOS XE Release 3.10(0)S:
IPv6 Limitations
The following limitation applies when using IPv6 on the Cisco ASR 903 Router:
• IPv6 Neighbor Discovery (ND) cache timer expiry is 4 hours. To prevent the neighbor adjacency
from being deleted after the timer expires:
– configure hardware based BFD sessions with the neighbors, or
– configure static IPv6 neighbors, or
– configure the ipv6 nd cache expire timer refresh command.

Cisco ASR 903 Specifications

General

Brand	Cisco
Model	ASR 903
Category	Network Router
Language	English