Dell PowerConnect J-EX8200 Note de mise à jour - Page 4
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JUNOS 10.2 Software Release Notes
Bridging, VLANs, and Spanning Trees
Class of Service (CoS)
Infrastructure
4
Server fail fallback—Allows you to specify how 802.1X supplicants (hosts) connected
to the switch are supported if the RADIUS authentication server becomes unavailable
or sends an EAPOL Access-Reject message.
RSTP configuration with VSTP—VSTP and RSTP can now be configured concurrently.
When VSTP and RSTP are configured concurrently, the first 253 VLANs are configured
with VSTP and the remaining VLANs are configured using RSTP. This feature allows
users to overcome a previous restriction that only allowed VSTP to run on up to 253
VLANs while no other spanning-tree protocols could run on the additional VLANs.
RSTP and VSTP are the only spanning-tree protocols that can be configured
concurrently on an J-EX Series switch.
Enhancements to CoS rewrite rules on J-EX8200 switches—The following
enhancements have been made to CoS rewrite rules on J-EX8200 switches:
Rewrite rules based on multifield (MF) classifiers are now supported.
Rewrite rules can now be assigned to Layer 2 interfaces, in addition to the previously
supported Layer 3 interfaces and routed VLAN interfaces (RVIs).
Rewrite rules are now supported for switched packets.
Each interface can have different rewrite rules. You are no longer limited to a single
global rewrite rule for all interfaces on the switch.
Interface-specific IPv6 classifiers and rewrite rules—J-EX4200 switches now allow
you to configure and apply IPv6 classifiers and rewrite rules for each interface.
Enhancements to power management on J-EX8200 switches—Power management
on J-EX8200 switches now allows you to configure certain aspects of its power budget
policy, which determines how it manages the power supplies and allocates power to
various components. You can:
Configure power management to manage the power supplies for N+N power
redundancy instead of N+1 redundancy.
Assign a power priority to line cards. This allows higher priority cards to receive power
when power is insufficient to power all line cards. Previously, when power was
insufficient, all line cards were powered off. Now line cards receive power in priority
order until available power is exhausted.
Distributed periodic packet management—The responsibility for PPM processing on
an J-EX Series switch is now distributed between the Routing Engine and either the
access interfaces (on J-EX4200 switches) or the line cards (on J-EX8200 switches)
by default. PPM previously ran solely on the Routing Engine. We recommend that you