Organizations moving to this version often do so to address critical bugs or to support specific hardware scale requirements, such as Instant Access (IA) client support for Catalyst 6800ia switches.
Cisco released a security advisory: High-severity vulnerability in parsing of poetic OSPF hello packets. No fix available. Workaround: unplug everything. s6t64adventerprisek9mzspa1551sy10bin exclusive
: Typically carries a premium over the standard IP Services tier due to its exhaustive feature set. Organizations moving to this version often do so