组网如下图:
问题描述:两台6520做堆叠,设备开启PIM-SM跑组播流量,流量从聚合口1进入,从聚合口2发出,但是聚合口2中只有一个链路Ten1/0/45口有流量
Ten-GigabitEthernet1/0/1
Current state: UP
Line protocol state: UP
…
Last 300 second input: 32091 packets/sec 44222049 bytes/sec 36%
Last 300 second output: 0 packets/sec 77 bytes/sec 0%
Ten-GigabitEthernet2/0/1
Current state: UP
Line protocol state: UP
…
Last 300 second input: 46122 packets/sec 63556982 bytes/sec 52%
Last 300 second output: 0 packets/sec 106 bytes/sec 0%
Ten-GigabitEthernet1/0/45
Current state: UP
Line protocol state: UP
…
Last 300 second input: 0 packets/sec 15 bytes/sec 0%
Last 300 second output: 77245 packets/sec 106443727 bytes/sec 9%
Ten-GigabitEthernet2/0/45
Current state: UP
Line protocol state: UP
…
Last 300 second input: 1 packets/sec 146 bytes/sec 0%
Last 300 second output: 0 packets/sec 27 bytes/sec 0%
过程分析:
聚合口选中正常,端口收发光正常,端口正常放通业务vlan,组播邻居及组播(S,G)表项正常
成员口状态正常:
Aggregate Interface: Bridge-Aggregation2
Creation Mode: Manual
Aggregation Mode: Dynamic
Loadsharing Type: Shar
Management VLANs: None
System ID: 0x8000, f474-88d2-9c10
Local:
Port Status Priority Index Oper-Key Flag
XGE1/0/45 S 32768 3 2 {ACDEF}
XGE2/0/45 S 32768 4 2 {ACDEF}
Remote:
Actor Priority Index Oper-Key SystemID Flag
XGE1/0/45(R) 32768 3 3 0x8000, 84d9-31d8-0a00 {ACDEF}
XGE2/0/45 32768 31 3 0x8000, 84d9-31d8-0a00 {ACDEF}
收发光正常:
Ten-GigabitEthernet1/0/45 transceiver diagnostic information:
Current diagnostic parameters:
Temp.(¡ラ Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
33 3.31 29.52 -4.71 -3.45
Alarm thresholds:
Temp.(¡ラ Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
High 73 3.80 88.00 2.50 1.00
Low -3 2.81 1.00 -16.40 -11.25
Ten-GigabitEthernet2/0/45 transceiver diagnostic information:
Current diagnostic parameters:
Temp.(¡ラ Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
33 3.35 35.66 -2.90 -2.64
Alarm thresholds: Temp.(¡ラ Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
High 73 3.80 99.00 2.50 2.50
Low -8 2.81 1.00 -16.40 -11.20
端口放通vlan正常
VLAN ID: 3333
VLAN type: Static
Route interface: Configured
IPv4 address: 172.26.252.154
IPv4 subnet mask: 255.255.255.252
Description: LingShiHuLian-6520
Name: VLAN 3333
Tagged ports:
Bridge-Aggregation2
Ten-GigabitEthernet1/0/45
Ten-GigabitEthernet2/0/45
Untagged ports: None
尝试修改hash方式,如下中所有的方法都尝试过,全都无法hash
同一聚合接口下,同时配置了静态聚合负载分担和动态聚合负载分担时,动态聚合负载分担生效。
目前,在系统视图下进行全局聚合负载分担类型配置,交换机只支持:
· 根据源IP地址进行聚合负载分担;
· 根据目的IP地址进行聚合负载分担;
· 根据源MAC地址进行聚合负载分担;
· 根据目的MAC地址进行聚合负载分担;
· 根据源IP地址与目的IP地址进行聚合负载分担;
· 根据源IP地址与源端口进行聚合负载分担;
· 根据目的IP地址与目的端口进行聚合负载分担;
· 根据源IP地址、源端口、目的IP地址与目的端口进行聚合负载分担;
· 根据报文入端口、源MAC地址、目的MAC地址之间不同的组合进行聚合负载分担。
关闭本框优转 (undo link-aggregation load-sharing mode local-first)后,流量可正常hash
[S6520]dis c r o i
问题原因:已知组播报文出接口为聚合口时,报文会按照已知单播hash,本地优先转发对已知单播报文生效,因此也对已知组播报文生效。组播报文上送主板后查找出接口时,都在主板接口转发了,没有实现负责分担。因此,关闭本框优转可实现流量hash转发
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