Specifications

Features in 291-04 149
Version 291-18
C613-10488-00 REV Q
CR00014300 DHCP
Snooping,
MACFF
- The following enhancements have been made to DHCP snooping, to support
MAC-forced forwarding:
■ MAC-forced forwarding checks the DHCP snooping database to find out
which router has been assigned to each DHCP client. DHCP snooping
determines this from the router list in DHCP acknowledgement messages.
However, some clients do not request a router. DHCP snooping now modifies
request messages from such clients, to ensure that they request a router. This
enables MAC-forced forwarding to interoperate with such clients.
■ Output from the command show dhcpsnooping database now displays the
list of routers that are assigned to each client, as shown in bold in the
following example:
Current valid entries
MAC Address IP Address Expires(s) VLAN Port ID Source
Router list
---------------------------------------------------------------------
00-00-cd-28-06-7b 192.168.99.1 52 1 13 2 Dynamic
192.168.199.254
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CR00014354 Ethernet
Switch
- This enhancement enables you to use 100 Mbps fiber SFPs with AR770S routers.
Support has been added for AT-SFPX/15 and AT-SFPX/40 SFPs.
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CR Module Level Description
AR400 AR7x5 AR7x0S Rapier i AT-8800 AT-8600 AT-8700XL x900-48 AT- 9900 AT-9800