Cisco N7K-C7009 Manual do Utilizador descarregar pdf (Página 74)

Presentation_ID

Cisco Public

BRKARC-3470 Cisco Public

Atomic Policy Programming

• Avoids packet loss during policy updates

• Enabled by default

• Atomic programming process:

‒ Program new policy in free/available CL TCAM entries

‒ Enable new policy by swapping the ACL label on interface

‒ Free CL TCAM resources used by previous policy

1 2 ... 69 70 71 72 73 74 75 76 77 78 79 ... 87 88

Architecture 2
Cisco Nexus 7000 Switch 2
Session Goal 3
What is Nexus 7000? 4
N7K-C7004 6
Nexus 7004 Chassis 7
‒ Fabric Modules 8
Supervisor Engine 2 / 2E 10
M Series and F Series 11
N7K-M224XP-23L 12
N7K-M206FQ-23L 14
* Roadmap feature 14
40G Transceivers – QSFP+ 16
N7K-M202CF-22L 17
CFP-40G-LR4 19
• Single-flow limit is ~10G 20
N7K-F248XP-25 21
• Fibre and copper version 22
10G MAC 10G MAC 24
To Fabric Modules 25
F2-Only VDC 26
 ECMP hashing 29
• Policy-based routing (PBR) 30
F2/F2E Forwarding Engine 31
Multistage Crossbar 34
230Gbps 35
110Gbps 36
220Gbps 330Gbps 440Gbps 36
550Gbps 36
What About Nexus 7004? 37
Central Arbitration 39
Virtual Output Queues (VOQs) 40
VOQ Destinations (VQIs) 41
I/O Module Buffering Models 44
M-Series I/O Modules 45
Ingress Buffered Model 46
Distributed Buffer Pool 47
Layer 2 Forwarding 49
M2 L2 Packet Flow – 10G 51
10G M2 Module Ingress Path 52
– 10G M2 Module 53
10G M2 Module Egress Path 54
M2 L2 Packet Flow – 40G/100G 56
VOQ→Fabric 57
– 40G / 100G M2 Module 58
40G example 60
F2 / F2E L2 Packet Flow 61
IP Forwarding 63
IPv4 FIB TCAM Lookup (M1/M2) 65
Forwarding Block 66
Compare 66
ECMP Load Sharing 67
M2 L3 Packet Flow 68
F2 / F2E L3 Packet Flow 69
What is Classification? 71
CL TCAM Lookup – ACL 72
CL TCAM Lookup – QoS 73
Atomic Policy Programming 74
NetFlow on Nexus 7000 78
Full vs. Sampled NetFlow 79
Sampled NetFlow Details 80
NetFlow on M1/M2 Modules 81
NetFlow 82
I/O Modules 84
Supervisor Engines 84
Fabrics 84
Chassis 84
Conclusion 85
Q & A 86
Complete Your Online Session 87
BRKARC-3470 88
Cisco Public 88

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