我最近遇到了一个问题，在我的端口通道接口上配置的风暴控制导致物理接口进入暂停状态。
硬件：3 个堆叠的 3850（IOS XE 版本 3.7.3E）接入交换机连接到瞻博网络传统核心和新的 6807-XL 核心
Interface/EtherChannel configuration:
interface GigabitEthernet1/1/1
description Uplink to 6807
switchport trunk native vlan 2248
switchport trunk allowed vlan 2106,2248,2510
switchport mode trunk
load-interval 30
auto qos trust
channel-protocol lacp
channel-group 1 mode active
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
interface GigabitEthernet2/1/1
description Uplink to 6807
switchport trunk native vlan 2248
switchport trunk allowed vlan 2106,2248,2510
switchport mode trunk
load-interval 30
auto qos trust
channel-protocol lacp
channel-group 1 mode active
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
interface Port-channel1
description Uplink to 6807
switchport trunk native vlan 2248
switchport trunk allowed vlan 2106,2248,2510
switchport mode trunk
logging event trunk-status
storm-control broadcast level 50.00
storm-control multicast level 50.00
storm-control unicast level 50.00
end
and
interface GigabitEthernet1/1/2
description Legacy Network
switchport trunk allowed vlan 12,30,50,111
switchport mode trunk
load-interval 30
auto qos trust
no cdp enable
channel-protocol lacp
channel-group 2 mode active
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
interface GigabitEthernet2/1/2
description Legacy Network
switchport trunk allowed vlan 12,30,50,111
switchport mode trunk
load-interval 30
auto qos trust
no cdp enable
channel-protocol lacp
channel-group 2 mode active
service-policy input AutoQos-4.0-Trust-Cos-Input-Policy
service-policy output AutoQos-4.0-Output-Policy
end
interface Port-channel2
description Legacy Network
switchport trunk allowed vlan 12,30,50,111
switchport mode trunk
logging event trunk-status
storm-control broadcast level 50.00
storm-control multicast level 50.00
storm-control unicast level 50.00
end
show etherchannel detail 透露风暴控制（广播抑制）是问题所在：
Channel-group listing:
----------------------
Group: 1
----------
Group state = L2
Ports: 2 Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol: LACP
Minimum Links: 0
Ports in the group:
-------------------
Port: Gi1/1/1
------------
Port state = Up Cnt-bndl Suspend Not-in-Bndl
Channel group = 1 Mode = Active Gcchange = -
Port-channel = null GC = - Pseudo port-channel = Po1
Port index = 0 Load = 0x00 Protocol = LACP
Flags: S - Device is sending Slow LACPDUs F - Device is sending fast LACPDUs.
A - Device is in active mode. P - Device is in passive mode.
Local information:
LACP port Admin Oper Port Port
Port Flags State Priority Key Key Number State
Gi1/1/1 SA susp 32768 0x1 0x0 0x132 0x45
Age of the port in the current state: 0d:00h:10m:48s
Probable reason: Broadcast suppression: Level of Gi1/1/1 is not configured. Level of Po1 is
50.00%, 50.00%.
<output omitted>
我最终取消了两个端口通道上的风暴控制，因为我在有限的时间窗口（切换）内工作，并且链接灯变为绿色并开始通过流量。关于接口为何进入挂起状态，我无法找到太多相关信息，因为这不是 Storm-control 或 etherchannel（据我所知）的默认行为。
此外，接口 Gi2/1/1（到 6807）和 Gi2/1/2（到旧版）没有连接，因为没有足够的光纤来容纳这个，但预计将来会发生。所以，我不确定这是否与它有关：
- Gi1/1/1 是 6807 核心的 Port-channel1 的一部分
- Gi1/1/2 是 Port-channel2 到传统内核的一部分
的show etherchannel summary：
switch#show etherchannel summary
<output omitted>
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
1 Po1(SU) LACP Gi1/1/1(P) Gi2/1/1(D)
2 Po2(SU) LACP Gi1/1/2(P) Gi2/1/2(D)
任何有关为什么 Gi1/1/1 和 Gi1/1/2 由于风暴控制而处于暂停状态的见解将不胜感激。提前致谢。