HP StorageWorks Fabric OS 6.1.x administrator guide (5697-0234, November 2009)
Fabric OS 6.1.x administrator guide 379
Table 86 shows the default mapping of DSCP priorities to L2Cos priorities per tunnel ID. This may be
helpful when consulting with the network administrator. These values may be modified per FCIP tunnel.
IPSec concepts and implementation over FCIP
Internet Protocol security (IPSec) uses cryptographic security to ensure private, secure communications over
Internet Protocol networks. IPSec supports network-level data integrity, data confidentiality, data origin
authentication, and replay protection. It helps secure your SAN against network-based attacks from
untrusted computers, attacks that can result in the denial-of-service of applications, services, or the network,
data corruption, and data and user credential theft. By default, when creating an FCIP tunnel, IPSec is
disabled.
Used to provide greater security in tunneling on an FR4-18i blade or a 400 Multi-protocol Router , the
IPSec feature does not require you to configure separate security for each application that uses TCP/IP.
When configuring for IPSec, however, you must ensure that there is an FR4-18i blade or a 400
Multi-protocol Router at each end of the FCIP tunnel. IPSec works on FCIP tunnels with or without IP
compression (IPComp), FCIP fastwrite, and tape pipelining.
IPSec requires an IPSec license in addition to the High-Performance Extension over FCIP/FC license.
Table 86 Default Mapping of DSCP priorities to L2Cos Priorities
Virtual CIrcuit
(VC)
DSCP priority/bits L2CoS priority/bits Assigned to:
0 4 6 / 1 0111 0 7 / 111 C l a s s F
1 7 / 000111 1 / 001 Medium QoS
2 11 / 001011 3 / 011 Medium QoS
3 15 / 0 01111 3 / 0 11 M e d i u m Q o S
4 19 / 010011 3 / 011 Medium QoS
5 23 / 010111 3 / 011 Medium QoS
6 27 / 011011 0 / 000 Class 3 Multicast
7 31 / 011111 0 / 0 0 0 B r o a d c a s t / M u l t i c a s t
8 35 / 100011 0 / 000 Low Qos
9 39 / 100111 0 / 000 Low Qos
10 43 / 101011 4 / 100 High QoS
11 4 7 / 1 0 1111 4 / 10 0 H i g h Q o S
12 51 / 11 0 0 11 4 / 10 0 H i g h Q o S
13 5 5 / 11 0111 4 / 10 0 H i g h Q o S
14 59 / 111011 4 / 100 High QoS
15 6 3 / 111111 0 / 0 0 0 -