VSC7511 datasheet(79/324 Pages) MICROSEMI

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Functional Descriptions

VMDS-10488 VSC7511 Datasheet Revision 4.2

With reference to the VCAP_S2_CFG register, the following table lists the hierarchy for different frame

types.

Table 35 •

Hierarchy of IS2 Entry Types

Frame Type

Description

IPv6 TCP and UDP

frames

Configuration: S2_IP6_CFG.

If S2_IP6_CFG is set to 0, IPv6 TCP and UDP frames are matched

against IP6_TCP_UDP entries.

If S2_IP6_CFG is set to 1, IPv6 TCP and UDP frames are matched

against IP6_STD entries.

If S2_IP6_CFG is set to 2, IPv6 TCP and UDP frames are matched

against IP4_TCP_UDP entries.

If S2_IP6_CFG is set to 3, IPv6 TCP and UDP frames are matched

against MAC_ETYPE entries.

Note: S2_IP6_CFG also controls the keys generation for IPv6

Other frames.

IPv6 Other frames

(non-TCP and non-UDP)

Configuration: S2_IP6_CFG.

If S2_IP6_CFG is set to 0, IPv6 Other frames are matched against

IP6_OTHER entries.

If S2_IP6_CFG is set to 1, IPv6 Other frames are matched against

IP6_STD entries.

If S2_IP6_CFG is set to 2, IPv6 Other frames are matched against

IP4_OTHER entries.

If S2_IP6_CFG is set to 3, IPv6 Other frames are matched against

MAC_ETYPE entries.

Note: S2_IP6_CFG also controls the keys generation for IPv6

TCP and UDP frames.

IPv4 TCP and UDP

frames

Configuration: S2_IP_TCPUDP_DIS

If S2_IP_TCPUDP_DIS is cleared, IPv4 TCP and UDP frames are

matched against IP4_TCPUDP entries.

If S2_IP_TCPUDP_DIS is set, IPv4 TCP and UDP frames are matched

against MAC_ETYPE entries.

IPv4 Other frames

(non-TCP and non-UDP)

Configuration: S2_IP_OTHER_DIS

If S2_IP_OTHER_DIS is cleared, IPv4 Other frames are matched

against IP4_OTHER entries.

If S2_IP_OTHER_DIS is set, IPv4 Other frames are matched against

MAC_ETYPE entries.

ARP frames

Configuration: S2_ARP_DIS

If S2_ARP_DIS is cleared, ARP frames are matched against ARP

entries.

If S2_ARP_DIS is set, ARP frames are matched against MAC_ETYPE

entries.

OAM frames

Configuration: S2_OAM_DIS

If S2_OAM_DIS is cleared, OAM frames are matched against OAM

entries.

If S2_OAM_DIS is set, OAM frames are matched against MAC_ETYPE

entries.

SNAP frames

Configuration: S2_SNAP_DIS

If S2_SNAP_DIS is cleared, SNAP frames are matched against SNAP

entries.

If S2_SNAP_DIS is set, SNAP frames are matched against LCC

entries.

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