[cmaster-next] [PATCH] lib, zebra: Minimize display of link-params sub data

David Lamparter equinox at opensourcerouting.org
Mon Dec 5 10:16:34 EST 2016


Applied this version of the patch.

Olivier - the previous and current situation was/is that doing "no
metric" makes the entire "link-params" block go away in show
running-config.  Is that intended?  Wouldn't it make more sense to
control the LP_TE flag by the "link-params" / "no link-params" statement
itself?

(If you want to change things around, please send a patch :)


-David

On Thu, Dec 01, 2016 at 10:49:22AM -0500, Donald Sharp wrote:
> When link-params is configured it auto starts displaying
> 6000-02# conf t
> dell-s6000-02(config)# int swp1
> dell-s6000-02(config-if)# link-params
> dell-s6000-02(config-link-params)# admin-grp 0x12345678
> dell-s6000-02(config-link-params)# end
> dell-s6000-02# show run
> 
> interface swp1
>  link-params
>   enable
>   metric 0              <----Remove the bw lines
>   max-bw 1.25e+06
>   max-rsv-bw 1.25e+06
>   unrsv-bw 0 1.25e+06
>   unrsv-bw 1 1.25e+06
>   unrsv-bw 2 1.25e+06
>   unrsv-bw 3 1.25e+06
>   unrsv-bw 4 1.25e+06
>   unrsv-bw 5 1.25e+06
>   unrsv-bw 6 1.25e+06
>   unrsv-bw 7 1.25e+06
>   admin-grp 305419896
>   exit-link-params
> !
> 
> I'd like to reduce this to:
> 
> interface enp0s3
>  ip igmp
>  ip pim sm
>  link-params
>   enable
>   admin-grp 0x12345678    <----- Fix this to be what we entered
>   exit-link-params
> !
> 
> Signed-off-by: Donald Sharp <sharpd at cumulusnetworks.com>
> ---
>  lib/if.c          | 10 +++++-----
>  lib/if.h          |  2 ++
>  zebra/interface.c | 17 +++++++++--------
>  3 files changed, 16 insertions(+), 13 deletions(-)
> 
> diff --git a/lib/if.c b/lib/if.c
> index 6ae8500..1987c05 100644
> --- a/lib/if.c
> +++ b/lib/if.c
> @@ -1391,14 +1391,14 @@ if_link_params_get (struct interface *ifp)
>    iflp->te_metric = ifp->metric;
>  
>    /* Compute default bandwidth based on interface */
> -  int bw = (float)((ifp->bandwidth ? ifp->bandwidth : DEFAULT_BANDWIDTH)
> -                   * TE_KILO_BIT / TE_BYTE);
> +  iflp->default_bw = ((ifp->bandwidth ? ifp->bandwidth : DEFAULT_BANDWIDTH)
> +		      * TE_KILO_BIT / TE_BYTE);
>  
>    /* Set Max, Reservable and Unreserved Bandwidth */
> -  iflp->max_bw = bw;
> -  iflp->max_rsv_bw = bw;
> +  iflp->max_bw = iflp->default_bw;
> +  iflp->max_rsv_bw = iflp->default_bw;
>    for (i = 0; i < MAX_CLASS_TYPE; i++)
> -    iflp->unrsv_bw[i] = bw;
> +    iflp->unrsv_bw[i] = iflp->default_bw;
>  
>    /* Update Link parameters status */
>    iflp->lp_status = LP_TE | LP_MAX_BW | LP_MAX_RSV_BW | LP_UNRSV_BW;
> diff --git a/lib/if.h b/lib/if.h
> index 57062cd..f41a064 100644
> --- a/lib/if.h
> +++ b/lib/if.h
> @@ -161,6 +161,7 @@ struct if_stats
>  #define LP_RES_BW               0x0400
>  #define LP_AVA_BW               0x0800
>  #define LP_USE_BW               0x1000
> +#define LP_TE_METRIC            0x2000
>  
>  #define IS_PARAM_UNSET(lp, st) !(lp->lp_status & st)
>  #define IS_PARAM_SET(lp, st) (lp->lp_status & st)
> @@ -174,6 +175,7 @@ struct if_stats
>  struct if_link_params {
>    u_int32_t lp_status;   /* Status of Link Parameters: */
>    u_int32_t te_metric;   /* Traffic Engineering metric */
> +  float default_bw;
>    float max_bw;          /* Maximum Bandwidth */
>    float max_rsv_bw;      /* Maximum Reservable Bandwidth */
>    float unrsv_bw[MAX_CLASS_TYPE];     /* Unreserved Bandwidth per Class Type (8) */
> diff --git a/zebra/interface.c b/zebra/interface.c
> index 6ffc0a6..f5eca4a 100644
> --- a/zebra/interface.c
> +++ b/zebra/interface.c
> @@ -1931,7 +1931,7 @@ DEFUN (link_params_metric,
>    VTY_GET_ULONG("metric", metric, argv[0]);
>  
>    /* Update TE metric if needed */
> -  link_param_cmd_set_uint32 (ifp, &iflp->te_metric, LP_TE, metric);
> +  link_param_cmd_set_uint32 (ifp, &iflp->te_metric, LP_TE | LP_TE_METRIC, metric);
>  
>    return CMD_SUCCESS;
>  }
> @@ -1945,7 +1945,7 @@ DEFUN (no_link_params_metric,
>    VTY_DECLVAR_CONTEXT (interface, ifp);
>  
>    /* Unset TE Metric */
> -  link_param_cmd_unset(ifp, LP_TE);
> +  link_param_cmd_unset(ifp, LP_TE | LP_TE_METRIC);
>  
>    return CMD_SUCCESS;
>  }
> @@ -2873,20 +2873,21 @@ link_params_config_write (struct vty *vty, struct interface *ifp)
>  
>    vty_out (vty, " link-params%s", VTY_NEWLINE);
>    vty_out(vty, "  enable%s", VTY_NEWLINE);
> -  if (IS_PARAM_SET(iflp, LP_TE))
> +  if (IS_PARAM_SET(iflp, LP_TE) && IS_PARAM_SET(iflp, LP_TE_METRIC))
>      vty_out(vty, "  metric %u%s",iflp->te_metric, VTY_NEWLINE);
> -  if (IS_PARAM_SET(iflp, LP_MAX_BW))
> +  if (IS_PARAM_SET(iflp, LP_MAX_BW) && iflp->max_bw != iflp->default_bw)
>      vty_out(vty, "  max-bw %g%s", iflp->max_bw, VTY_NEWLINE);
> -  if (IS_PARAM_SET(iflp, LP_MAX_RSV_BW))
> +  if (IS_PARAM_SET(iflp, LP_MAX_RSV_BW) && iflp->max_rsv_bw != iflp->default_bw)
>      vty_out(vty, "  max-rsv-bw %g%s", iflp->max_rsv_bw, VTY_NEWLINE);
>    if (IS_PARAM_SET(iflp, LP_UNRSV_BW))
>      {
>        for (i = 0; i < 8; i++)
> -        vty_out(vty, "  unrsv-bw %d %g%s",
> -            i, iflp->unrsv_bw[i], VTY_NEWLINE);
> +	if (iflp->unrsv_bw[i] != iflp->default_bw)
> +	  vty_out(vty, "  unrsv-bw %d %g%s",
> +		  i, iflp->unrsv_bw[i], VTY_NEWLINE);
>      }
>    if (IS_PARAM_SET(iflp, LP_ADM_GRP))
> -    vty_out(vty, "  admin-grp %u%s", iflp->admin_grp, VTY_NEWLINE);
> +    vty_out(vty, "  admin-grp 0x%x%s", iflp->admin_grp, VTY_NEWLINE);
>    if (IS_PARAM_SET(iflp, LP_DELAY))
>      {
>        vty_out(vty, "  delay %u", iflp->av_delay);
> -- 
> 2.5.5
> 
> 
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