Foundry NetIron MLX Series Installation and Basic Configuration Guide
7-28
© 2008 Foundry Networks, Inc.
December 2008
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FPGA upgrades are not supported
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IPv6 unicast
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VRRP and VRRP-E
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All VPN features
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Network management to the device:
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SSH
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Telnet
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SNTP
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HTTP/HTTPS
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sFlow (LP only)
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Ping
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Traceroute
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Syslog messages are cleared
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SNMP
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SNMP trap
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DNS
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DHCP
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AAA
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VSRP
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POS
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802.1ag (support added in version 03.7.00)
NOTE:
Linktrace (mac traceroute) and Loopback (mac ping) are not supported during hitless upgrade.
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UDLD
NOTE:
Services listed as not supported may encounter disruptions during reset of the management and
interface modules but will resume normal operation once the modules are back up and running.
Considerations when Using the Feature
Consider the following when using this feature:
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You must have both active and standby management modules installed to use this feature.
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To avoid any disruptions of Layer-3 traffic to OSPF or BGP routes, the router must be configured with OSPF
Graceful Restart and BGP Graceful Restart features. In addition, the device’s OSFP neighbors must have
OSPF Graceful Restart Helper enabled.
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The total time it takes for the hitless upgrade process to finish varies between approximately 1 and 10
minutes. This depends on the size of the MAC table, the number of OSPF and BGP neighbors and the size of
the routing table. Router configuration is unavailable during the entire hitless upgrade process. The message
"---SW Upgrade In Progress - Please Wait---"
is printed at the console when configuration is
attempted. Operational command of the router is allowed during the upgrade process.
•
The active management module changes from the initial active management module to the standby
management module during the hitless upgrade process. This makes it necessary to have a connection to the
console interface on both management modules.
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Upon being reset, the management and interface module CPUs are unable to send and receive any packets.