请教一个端口速率不一致的问题

惢恨

一台N7K与ASR1006用网线互联，端口上没有修改速率，但现在在N7K上查看，speed是1000 Mb/s, ASR1006上speed是100Mbps
请问这是怎么回事？目前业务没出问题，但这会不会有什么隐患？

biddid

https://www.cisco.com/c/en/us/td ... nf_chapter_011.html

Autonegotiation is automatically enabled and can be disabled on the Gigabit Ethernet interfaces on the Cisco ASR 1000 Series Fixed Ethernet Line Card. During autonegotiation, advertisement for flow control, speed, and duplex occurs, depending on the media (fiber or copper) in use. If the interface is connected to a link that has autonegotiation disabled, autonegotiation should either be re-enabled on the other end of the link or disabled on the Cisco ASR 1000 Series Fixed Ethernet Line Card, if possible. Both ends of the link will not come up properly if only one end of the link has disabled autonegotiation.

Speed and duplex configurations can be advertised using autonegotiation. However, the only values that are negotiated are:

这里->For Cisco ASR 1000 Series Fixed Ethernet Line Cards—100 Mbps for speed and full-duplex mode.
    For Cisco ASR 1000 Series Fixed Ethernet Line Cards using RJ-45 copper interfaces—1000 Mbps for speed and full-duplex mode. Link speed is not negotiated when using fiber interfaces.

From a user's perspective, these settings are not really negotiated, but rather, are enabled using autonegotiation. The SFPs for Cisco ASR 1000 Series Fixed Ethernet Line Cards support 1000Base-X, but the IEEE 1000Base-X standard for fiber does not support negotiation of link speed.

h19

不大懂，会不会可能大的带宽发送的速率快，导致带宽小的接受不及时而丢包或者流量堵塞呢

Vxianyu

反正链路速率只有100mbps就是了