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Comment: fix broadcom limits numbers

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On Broadcom platforms, IPv6 egress rules are not supported. The default rules count toward the limits listed in the tables below. The raw limits below assume only one ingress and one egress table are present.

Broadcom Tomahawk Limits

DirectionAtomic Mode IPv4 RulesAtomic Mode IPv6 RulesNonatomic Mode IPv4 RulesNonatomic Mode IPv6 Rules
Ingress raw limit25651225651276810247681024
Ingress limit with default rules256 (36 default)256 (29 default)256 768 (36 default)256 768 (29 default)
Egress raw limit256N/A512N/A
Egress limit with default rules256 (29 default)N/A256 512 (29 default)N/A

Broadcom Trident II+ Limits

DirectionAtomic Mode IPv4 RulesAtomic Mode IPv6 RulesNonatomic Mode IPv4 RulesNonatomic Mode IPv6 Rules
Ingress raw limit20484096307240966144819261448192
Ingress limit with default rules1024 2048 (36 default)2048 3072 (29 default)2048 6144 (36 default)2048 6144 (29 default)
Egress raw limit256N/A512N/A
Egress limit with default rules256 (29 default)N/A256 512 (29 default)N/A

Broadcom Trident II Limits

DirectionAtomic Mode IPv4 RulesAtomic Mode IPv6 RulesNonatomic Mode IPv4 RulesNonatomic Mode IPv6 Rules
Ingress raw limit512102476810241536204815362048
Ingress limit with default rules256 512 (36 default)512 768 (29 default)512 1536 (36 default)512 1536 (29 default)
Egress raw limit256N/A512N/A
Egress limit with default rules256 (29 default)N/A256 512 (29 default)N/A

Broadcom Helix4 Limits

DirectionAtomic Mode IPv4 RulesAtomic Mode IPv6 RulesNonatomic Mode IPv4 RulesNonatomic Mode IPv6 Rules
Ingress raw limit7681024384512179220488961024
Ingress limit with default rules128 768 (36 default)128 384 (29 default)128 1792 (36 default)128 896 (29 default)
Egress raw limit256N/A512N/A
Egress limit with default rules256 (29 default)N/A256 512 (29 default)N/A

Mellanox Spectrum Limits

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